scholarly journals V. Spectroscopic observations of the Sun.— No. III

1869 ◽  
Vol 17 ◽  
pp. 350-356 ◽  
Keyword(s):  
Royal College ◽  
Royal Society ◽  
The Sun ◽  
Spectroscopic Observations

Since my second paper under the above title was communicated to the Royal Society, the weather has been unfavourable to observatory work to an almost unprecedented degree; and, as a consequence, the number of observations I have been enabled to make during the last four months is very much smaller than I had hoped it would be. Fortunately, however, the time has not been wholly lost in consequence of the weather; for, by the kindness of Dr. Frankland, I have been able in the interim to familiarize myself at the Royal College of Chemistry with the spectra of gases and vapours under previously untried conditions, and, in addition to the results already communicated to the Royal Society by Dr. Frankland and myself, the experience I have gained at the College of Chemistry has guided me greatly in my observations at the telescope.

scholarly journals II. On the atmospheric lines of the solar spectrum, illustrated by a map drawn on the same scale as that adopted by Kirchhoff

1875 ◽  
Vol 23 (156-163) ◽  
pp. 201-202
Keyword(s):  
Sea Level ◽  
Royal Society ◽  
Solar Spectrum ◽  
The Sun ◽  
Atmospheric Absorption ◽  
Spectroscopic Observations ◽  
Clear Atmosphere

The spectroscopic observations described in this paper were made with instruments belonging to the Royal Society, and in accordance with certain suggestions which had been made to the author by a committee appointed in consequence of a letter of his to Sir Edward Sabine, President, dated 13th February, 1866. In view of his residence at a considerable height above the sea-level, and of the exceedingly clear atmosphere prevailing at some periods of the year, it was suggested that the locality was peculiarly favourable for a determination of the lines of the solar spectrum due to atmospheric absorption, and that, for this purpose, the solar spectrum when the sun was high should be compared with the spectrum at sunset, and any additional lines which might appear in the latter case should be noted with reference to Kirchhoff’s map. Accordingly the author set to work with the spectroscope first supplied to him, and in the autumns of 1868 and 1869 mapped the differences in question from the extreme red to D. These results appeared in the 'Proceedings of the Royal Society' for June 16,1870, and the map of the spectra, sun high and sun low, of the region in question forms plate 1 of the 19th volume.

scholarly journals XX. Spectroscopic observations of the sun

1875 ◽  
Vol 165 ◽  
pp. 577-586
Keyword(s):  
Royal Society ◽  
The Sun ◽  
Spectroscopic Observations ◽  
The Temple ◽  
Made In

We have the honour to communicate to the Royal Society the accompanying Spectroscopic Observations of the Chromosphere and of the Sun generally, made during the period between the 1st October, 1872, and the 31st December, 1873. The London observations have been made in Alexandra Road, Finchley Road, N. W.; the Rugby observations in the Temple Observatory at that place. The following details are given of the instruments and methods of observation employed.

scholarly journals XII. Spectroscopic observations of the sun.—No. II

1869 ◽  
Vol 159 ◽  
pp. 425-444 ◽  
Keyword(s):  
Royal Society ◽  
The Sun ◽  
Spectroscopic Observations ◽  
Sun Spots

In my first paper under the above title, kindly communicated by Dr. Sharpey to the Royal Society in 1866, was contained an account of the determination of the nature of Sun-spots by means of the spectroscope. The paper concluded as follows:— “May not the spectroscope afford us evidence of the existence of the 'red-flames’ which total eclipses have revealed to us in the sun’s atmosphere, although they escape all other methods of observation at other times? and if so, may we not learn something from this of the recent outburst of the star in Corona?”

scholarly journals III. Spectroscopic observations of the sun.—No. IV

1869 ◽  
Vol 17 ◽  
pp. 415-418 ◽  
Keyword(s):  
Royal Society ◽  
The Sun ◽  
Spectroscopic Observations

I beg to lay before the Royal Society very briefly the results of observations made on the 11th instant in the neighbourhood of a fine spot, situated not very far from the sun’s limb. I. Under certain conditions the C and F lines may be observed bright on the sun , and in the spot-spectrum also, as in prominences or in the chromosphere. II. Under certain conditions, although they are not observed as bright lines, the corresponding Fraunhofer lines are blotted out.

Dr James Copland (1791–1870) and his Dictionary of Practical Medicine

2021 ◽  
pp. 096777202110323
Author(s):  
Simon Gray
Keyword(s):  
West Africa ◽  
Medical Practice ◽  
Royal College ◽  
Royal Society ◽  
Literary Work ◽  
Practical Experience ◽  
Private Life ◽  
Tropical Diseases ◽  
Practical Medicine ◽  
Orkney Islands

Dr James Copland (1791–1870) was born in the Orkney Islands and studied medicine at Edinburgh where he graduated in 1815. The following year was spent in Paris to acquire knowledge of the latest developments in pathology and he then travelled for a year along the coast of West Africa gaining practical experience of treating tropical diseases. After establishing his medical practice in London, which eventually became extremely successful, he contributed to medical journals and also became editor of the London Medical Repository from 1822 to 1825. His greatest work was The Dictionary of Practical Medicine written entirely by himself which was completed between 1832 and 1858. More than 10,000 copies of the dictionary were sold and its author became world famous during his lifetime. In 1833, Copland was elected a Fellow of the Royal Society and from 1837 onwards he played a prominent role in the proceedings of The Royal College of Physicians. This article shows how his extensive professional and literary work was combined with an unusual private life.

scholarly journals XI. A letter from Pierce Dodd, M. D. Fellow of the Royal College of Physicians, London, and Physician to St. Bartholomew's Hospital, to the President of the Royal Society, concerning a person who made bloody urine in the small-pox, and recovered

1743 ◽  
Vol 42 (470) ◽  
pp. 559-563
Keyword(s):  
Royal College ◽  
Royal Society ◽  
Small Pox

Sir , Making bloody Water is universally esteemed as terrible a Symptom as any that can happen in the Small-pox ; and all who have wrote concerning that Distemper, do unanimously agree, that it is a certain Forerunner of approaching Death.

III. Spectroscopic observations of the sun

1867 ◽  
Vol 15 ◽  
pp. 256-258 ◽  
Keyword(s):  
The Other ◽  
The Sun ◽  
Chemical Action ◽  
Spectroscopic Observations ◽  
Gaseous Mass ◽  
Other Hand ◽  
Sun Spots ◽  
Physical Constitution ◽  
Upward Current

The two most recent theories dealing with the physical constitution of the sun are due to M. Faye and to Messrs. De la Rue, Balfour Stewart, and Loewy. The chief point of difference in these two theories is the explanation given by each of the phenomena of sun-spots. Thus, according to M. Faye, the interior of the sun is a nebulous gaseous mass of feeble radiating-power, at a temperature of dissociation; the photosphere is, on the other hand, of a high radiating-power, and at a temperature sufficiently low to permit of chemical action. In a sunspot we see the interior nebulous mass through an opening in the photosphere, caused by an upward current, and the sun-spot is black, by reason of the feeble radiating-power of the nebulous mass.

scholarly journals I.—Secular Earth-Creep

1909 ◽  
Vol 6 (4) ◽  
pp. 145-148 ◽  
Author(s):  
E. H. L. Schwarz
Keyword(s):  
South Africa ◽  
Diurnal Variation ◽  
Royal Society ◽  
The Sun ◽  
Special Design ◽  
Important Paper ◽  
Preliminary Results ◽  
Gravitational Pull ◽  
Set Up ◽  
Horizontal Pendulum

Dr. J. R. Sutton has recently read a most important paper to the Royal Society of South Africa on the diurnal variation of level at Kimberley. The paper gave the preliminary results of observations made during the course of three years upon the variation of the level of the ground as recorded by a large horizontal pendulum of a special design made for the author by the Cambridge Instrument Company. It appeared from the results that the movements in the surface of the ground, which set up corresponding movements in the pendulum, were very great. The maximum westerly elongation of the extremity of the pendulum occurred about 5.30 a.m., the maximum easterly about 4.15 p.m., the medium positions a little before 11 a.m. and 9.30 p.m. Geometrically these movements may be represented on the hypothesis that the hemisphere facing the sun bulges out, forming a sort of meniscus to the geosphere. The rise and fall of the surface of the ground which such a supposition would postulate is enormous, and the very magnitude has led Dr. Sutton to hesitate in giving the figures. There can, however, be very little doubt that some rise and fall in the earth's surface is occasioned by the sun's gravitational pull, although the present figures may have to be lessened by taking into consideration other causes which contribute to the disturbance of the pendulum.

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