scholarly journals Experimental researches on the emission of oxygen by the pelvic filaments of the male lepidosiren with some experiments on symbranchus marmoratus

1932 ◽  
Vol 110 (766) ◽  
pp. 234-248 ◽  
Keyword(s):  
Dissolved Oxygen ◽  
North Coast ◽  
The Political ◽  
Medical College ◽  
The North ◽  
Gran Chaco ◽  
Glass Tubes ◽  
Political Conditions ◽  
Experimental Researches ◽  
Made In

The stage which the question of the function of the pelvic filaments of the male Lepidosiren had reached before the researches described in this paper can be seen by reference to the paper by Carter and Beadle (1930) and that by Cunningham in the previous year. The researches of Carter and Beadle as well as those previously carried out by Graham Kerr were made in the Gran Chaco of Paraguay, in the swamps of which region Lepidosiren is rather abundant. But when direct experiments on the function of the filaments were contemplated the political conditions made it inadvisable to attempt to visit this region, and it was suggested that Lepidosiren would be found in sufficient abundance on the island of Marajó at the mouth of the River Amazon. No evidence was obtained that the fish had recently been taken in that island, but three specimens, all from the same locality, namely a “papyrus meadow” near Fazenda Dunas on the north coast of the island, were recorded in 1896 and 1898 by Dr. Goeldi, Director and founder of the Muséu Goeldi at Belem. It was therefore decided to organise and carry out an expedition to Marajó. The equipment was prepared in the Physiological Department of the London Hospital Medical College and consisted of large glass tubes from 18 inches to 30 inches in length and 1½ inches to 3 inches in diameter; and weighed quantities in hermetically sealed tubes or bottles of the reagents required for the estimation of dissolved oxygen in water, together with the necessary accessories, and a special pump for obtaining water from below the surface of swamp pools.

scholarly journals Aspects of the Glaciology of Meighen Island, Northwest Territories, Canada

1965 ◽  
Vol 5 (40) ◽  
pp. 399-410 ◽  
Author(s):  
K. C. Arnold
Keyword(s):  
Snow Accumulation ◽  
The Arctic ◽  
North Coast ◽  
Ice Cap ◽  
The North ◽  
Four Seasons ◽  
Northern Half ◽  
Northern Edge ◽  
Summer Temperatures ◽  
Made In

Abstract Meighen Island lies in the centre of the north coast of the Queen Elizabeth Islands and fronts on the Arctic Ocean. An ice cap of about 76 km.2 covers about one-tenth of the island. Its greatest thickness of 150 m. occurs under the summit, near the south end, which was 268 m. above sea-level in 1960. The northern half of the ice cap is less than 30 m. thick; and the total volume is of the order of 2,000 × 106 m.3. Precipitation is low in the northern Queen Elizabeth Islands, and Meighen Island lies in an area where summer temperatures are lowest. In the winters of 1959–60, 1960–61 and 1961–62, the snow accumulation was 12.6, 18.2 and 14.1 cm. of water equivalent. Some snowfall remained on the higher part of the ice cap in the cold summer of 1961; but the ice cap diminished in volume in each year; by 36 × 106, 72 × 106, 22 × 106 and 91 × 106 m.3 in the 1959, 1960, 1961 and 1962 ablation seasons. If the conditions of these four seasons were maintained the ice cap would disappear in about 100 yr. However, a radio-carbon dating of a saxifrage exposed by the retreat of the ice from a small nunatak near the northern edge gave a date of less than 100 yr., and it appears that the existence of the ice cap might be sensitively related to recent climatic change. Careful surveys were made in 1959, 1960 and 1961 in an attempt to detect movement in the ice cap. Unequivocal evidence is not available from these surveys; but the stake network has been maintained and another survey has recently been completed.

DINAMIKA KEBIJAKAN TENTANG PERIKANAN DAN TRANSFORMASI BUDAYA NELAYAN PANTAI UTARA JAWA

2011 ◽  
Vol 6 (1) ◽  
pp. 30
Author(s):  
Sutejo K. Widodo
Keyword(s):  
Marine Fish ◽  
North Coast ◽  
The Political ◽  
Salted Fish ◽  
The Past ◽  
The North ◽  
Self Reliance ◽  
Dried Fish ◽  
The 1960S ◽  
Colonial Government

Rice and fish could be complementing each other as human primary needs for nutrition. However, both these commodities have a history with the opposite. Although Java island is surrounded by the waters of the sea, in the past the population in meeting the needs of fish, mainly marine fish, mostly done by the fishermen who brought in fish catches from other areas or imported, in the form of salted fish and dried fish, since the Dutch colonial government and gradually began to set the political self-sufficient self-reliance in the 1960s. This article discusses the dynamics of policy on fishing in the north coast of Java, with a historical approach with a span of years 1900 to 2000.

Haemogregarina anarrhichadis from Anarrhichas lupus, the Catfish

Parasitology ◽  
1912 ◽  
Vol 5 (3) ◽  
pp. 190-196 ◽  
Author(s):  
Herbert Henry
Keyword(s):  
North Coast ◽  
Otter Trawl ◽  
Present Communication ◽  
The North ◽  
The Subject ◽  
Large Adult ◽  
Made In

The haemogregarine which is the subject of the present communication was obtained in material collected by me during two voyages made in a trawler in July 1910, round the Shetlands and the north coast of Scotland. It was found in large adult specimens of catfish (Anarrhichas lupus), taken by otter trawl from a depth of 50 to 80 fathoms, in the vicinity of Fair Isle and Foula, and on Whitenhead Bank about nine miles to the N.N.E. of Cape Wrath. Catfish taken near Rhona and Sulisker in the Atlantic showed no infection, but the number of fish examined was so small that one could not assume the infection to be absent in this locality.

Pygmy Implements from Cornwall

1913 ◽  
Vol 1 (3) ◽  
pp. 334-336
Author(s):  
Edwin L. Arnold
Keyword(s):  
Water Supply ◽  
Fresh Water ◽  
Rain Water ◽  
North Coast ◽  
The North ◽  
Snow White ◽  
Fresh Water Supply ◽  
Made In

The pygmy and small implements shown to-night from Cornwall were found on the landward slope of Trevose Head, near Padstow, on the north coast of the county. The sea end of this promontory rises to some 200 feet, and thence the ground inclines rapidly back to the mainland, the connecting neck being not more than half a mile wide. At the narrowest part the rain-water, constantly filtering through the adjacent peat, wastes down the hard bedrock of slate, comes out as a small spring, which, in the course of ages, has cut a channel of a hundred yards in length to the cliff edge. At the springhead stands a cairn of a massive block of white quartz, obviously of great age, but whether coeval with the prehistoric settlpment it would be impossible to say. This cairn or beacon would be seen from a long way over the adjacent bay, and might have served to guide seafarers of any age to the fresh-water supply. Here, amongst the faint traces of trenching and hut circles, the small implements, and chips made in their manufacture, all of snow-white patina, were lying about in great profusion.

XVI. Magnetical observations made in the West Indies, on North Coast of Brazil and North America, in the years 1834, 1835, 1836, and 1837, by Captain Sir Everard Home, Bart. R. N. F. R. S. Reduced by the Rev. George Fisher, M. A. F. R. S

1838 ◽  
Vol 128 ◽  
pp. 343-349
Keyword(s):  
West Indies ◽  
The Other ◽  
North Coast ◽  
The West ◽  
Magnetic Forces ◽  
The North ◽  
Before And After ◽  
The Face ◽  
The Times ◽  
Made In

It was the object in the experiments recorded in this paper, to determine the relative magnetic forces soliciting both the dipping, and horizontal needles, by observing the times of their completing a given number of vibrations at the various places visited during a period of three years, on the North American and West India Station, in Her Majesty’s Ship Racehorse. The dipping instrument used was one of modern construction by Dollond. Each observation for the dip consisted of an equal number of readings of the positions of the needle, with the face of the instrument east and west, before and after the inversion of the poles, and a mean of all the readings taken for the true dip. The instrument had two needles fitted to it, one of which being used solely for the purpose of observing its vibrations, its magnetism was therefore never interfered with, and this needle in this paper is distinguished by the letter B. The other needle was kept for the purpose of determining the dip, and the results obtained with it are given in Table I.

The Military Colonization of the Caucasus and Armenia under the Sassanids

1936 ◽  
Vol 8 (2-3) ◽  
pp. 613-618
Author(s):  
J. H. Kramers
Keyword(s):  
The Political ◽  
The Caucasus ◽  
The North ◽  
The People ◽  
Southern Russia ◽  
Political Conditions ◽  
Historical Tradition ◽  
The Military

The ancient Arabic historian al-Balāurī (d. 892) begins his chapter on the conquest of Armenia by a description of the political conditions of those regions in Sassanian times. According to the local historical tradition, obtained from inhabitants of several Armenian towns, there had been a time when the people of the Hazars in Southern Russia were making continuous raids over the Caucasus passes and penetrated Persia as far as al-Dīnawar in Media. The first king to take energetic measures against these raids was Kubā (Kawā, 488–531). One of his generals ravaged Arrān (Albania) between the Araxes and the Kura; then Kubā came himself and founded or, better, fortified in this region the towns of al-Baylakān, Bara'a, and Kabala. He erected also a wall of brick which extended from the country of Širwān in the east as far as the pass called Bāb al-Lān, the “Pass of the Alans”. His work was completed by his son Kisrā Anūširwān (usraw I, 531–579), who fortified farther to the north the towns of al-Šābirān and Maskat, and finally the very strong town of al-Bāb wa'1-Abwāb, on the site of the later Derbend.

Style, Technology, and State Production: Inka Pottery Manufacture in the Leche Valley, Peru

1999 ◽  
Vol 10 (4) ◽  
pp. 337-352 ◽  
Author(s):  
Frances M. Hayashida
Keyword(s):  
The State ◽  
North Coast ◽  
Pottery Production ◽  
Historical Sources ◽  
Cultural Policies ◽  
The North ◽  
State Production ◽  
North Coast Of Peru ◽  
Made In

According to historical sources, the Inka relocated groups of craft specialists to provincial centers to manufacture goods for the state. Recent fieldwork in the Leche Valley on the north coast of Peru provides insights into the organization and technology of pottery production at these centers. While Inka style jars were added to their repertories, potters continued to manufacture vessels in local styles using local techniques. These results caution against a reliance on style in identifying products made in administered contexts, and question the equivalence of style with polity in the Inka provinces. They also highlight a need to critically evaluate Inka cultural policies and the significance of subject styles in the empire.

scholarly journals Aspects of the Glaciology of Meighen Island, Northwest Territories, Canada

1965 ◽  
Vol 5 (40) ◽  
pp. 399-410
Author(s):  
K. C. Arnold
Keyword(s):  
Snow Accumulation ◽  
The Arctic ◽  
North Coast ◽  
Ice Cap ◽  
The North ◽  
Four Seasons ◽  
Northern Half ◽  
Northern Edge ◽  
Summer Temperatures ◽  
Made In

AbstractMeighen Island lies in the centre of the north coast of the Queen Elizabeth Islands and fronts on the Arctic Ocean. An ice cap of about 76 km.2 covers about one-tenth of the island. Its greatest thickness of 150 m. occurs under the summit, near the south end, which was 268 m. above sea-level in 1960. The northern half of the ice cap is less than 30 m. thick; and the total volume is of the order of 2,000 × 106 m.3.Precipitation is low in the northern Queen Elizabeth Islands, and Meighen Island lies in an area where summer temperatures are lowest. In the winters of 1959–60, 1960–61 and 1961–62, the snow accumulation was 12.6, 18.2 and 14.1 cm. of water equivalent. Some snowfall remained on the higher part of the ice cap in the cold summer of 1961; but the ice cap diminished in volume in each year; by 36 × 106, 72 × 106, 22 × 106 and 91 × 106 m.3 in the 1959, 1960, 1961 and 1962 ablation seasons.If the conditions of these four seasons were maintained the ice cap would disappear in about 100 yr. However, a radio-carbon dating of a saxifrage exposed by the retreat of the ice from a small nunatak near the northern edge gave a date of less than 100 yr., and it appears that the existence of the ice cap might be sensitively related to recent climatic change.Careful surveys were made in 1959, 1960 and 1961 in an attempt to detect movement in the ice cap. Unequivocal evidence is not available from these surveys; but the stake network has been maintained and another survey has recently been completed.

Pyroxenes, amphibole, and mica from the Tiree marble

1947 ◽  
Vol 28 (199) ◽  
pp. 230-243 ◽  
Author(s):  
A. F. Hallimond
Keyword(s):  
Point Of View ◽  
North Coast ◽  
Silicate Minerals ◽  
Small Areas ◽  
Precise Nature ◽  
Fine Grained ◽  
The North ◽  
Crushed Limestone ◽  
Made In

The Tiree pink marble, a fine-grained, severely crushed limestone with evidence of earlier coarse crystallization, is exposed in several small areas up to 100 feet across on the farm of Balephetrish near the north coast of the island of Tiree in the Hebrides. It contains a remarkable quantity of dark silicate minerals and has discordant contacts with the adjacent Lewisian gneiss. The precise nature of its relation to the gneiss, and mode of emplacement, have been much discussed. The writer has been permitted to consult accounts of the literature, by Mr. V. A. Eyles, and of the petrography, by Sir Edward B. Bailey, and is also indebted to those authors for discussion of the problems. At the suggestion of Sir Edward Bailey the present work was undertaken as a contribution to the study of this problem from the mineralogical point of view. Most of the determinations were made in 1938, but it was not possible to complete publication at that time.

scholarly journals New information on the Critically Endangered Javanese Lapwing Vanellus macropterus, based mainly on unpublished notes by August Spennemann (c. 1878–1945)

2007 ◽  
Vol 17 (3) ◽  
pp. 225-233 ◽  
Author(s):  
S (BAS) Van Balen ◽  
Vincent Nijman
Keyword(s):  
Group Size ◽  
South Coast ◽  
Critically Endangered ◽  
North Coast ◽  
The West ◽  
The North ◽  
New Information ◽  
Local Movement ◽  
Display Behaviour ◽  
Made In

AbstractIn a manuscript written by August Spennemann in the 1930s, information is presented on display behaviour, vocalizations and habitat at two hitherto unknown localities of the Javanese Lapwing Vanellus (Hoplopterus) macropterus, a species last recorded in 1940. We provide a translation of the notes and give a summary of all information additional to what has already been published on the species. The Javanese Lapwing is historically known from two discrete areas on the island of Java: one in the west along the north coast, and one in the east along the south coast. Spennemann's observations, made in 1927 and 1928 at Poponcol and Tegallurung, represent the last documented sightings of the species along the north coast and are situated some 75 km east of the north coast's previous easternmost known locality, effectively doubling the species' known range in western Java. At this time, the Javanese Lapwing was observed daily, and unlike at most other localities from where the species is known, was common. Spennemann observed them in groups of up to six birds, the largest group size recorded. Some local movement or migration is suggested by its erratic occurrence and off-shore sightings.

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