Some others

Author(s):  
J. S. Weiner ◽  
Chris Stringer

Teilhard de Chardin was by no means the first helper in the search. Very probably the first person to hear of Dawson’s original fossil find, the piece handed to him by the labourer, was his friend of many years’ standing, Mr. Sam Woodhead, a schoolmaster at Uckfield, who combined his teaching duties with the post of Public Analyst. Woodhead had carried out the analysis of the natural gas reported by Dawson to the Geological Society in 1898. He shared the first excitement of the finds at Piltdown, and went back to Barkham Manor with Dawson a few days after the first find to look for more fragments, but, as Dawson has told us, their search was fruitless. Woodhead maintained his connection with the investigation, and it was he who carried out a chemical analysis of the skull at some time before 1912. He remained at Uckfield till 1916, the year of Dawson’s death. He was a man of considerable attainments, becoming a Doctor of Science and a Fellow of the Institute of Chemistry. He became Public Analyst for Brighton and Hove, and in 1916 went to live at Barcombe, the scene of Dawson’s third discovery of human remains. He was among those who attended Dawson’s funeral in Lewes in 1916. Woodhead often spoke of his early connections with the famous event to his wife and son and to others, such as Mr. Essex, another teacher, at Uckfield. Mr. A. J. Smith of Leamington remembers in a conversation in about 1925 that, in telling of the event, Woodhead chuckled over his ‘truancy’ from school that day when he helped Mr. Dawson in the pit, as he did on subsequent occasions. These visits in 1908 are well remembered by Mrs. Sam Woodhead. During the years from 1908 to 1911 Dawson showed one or more of the thick pieces of cranium to others among his friends and colleagues. Mr. Ernest Victor Clark4 was given the privilege of a private view of the fragments when he and his wife were dining with the Dawsons in Lewes, at some time in the autumn of 1911 or early in 1912.

Author(s):  
L. J. Spencer

The presence of much native iron in Great Namaqualand was heard of in 1836 by the traveller Sir James E. Alexander, but he himself did not see any of the masses, and the material he acquired consisted only of small fragments that had been detached by the natives for pointing their weapons. An approximate chemical analysis of this material, made by Sir John Herschel, proved it to be meteoritic. A fragment weighing 2 grams which Alexander presented to the Geological Society of London in 1838 was transferred to the British Museum collection of meteorites in 1911. This appears to be all of his material that has been preserved.Various other vague reports and travellers' tales have mentioned the presence of large masses of iron beyond the old mission station of Bethany, between there and Beersheba, and on the east side of the Great Fish River. A critical summary of these accounts was given by Sir Lazarus Fletcher in this magazine.


Jurnal Ecolab ◽  
2011 ◽  
Vol 5 (2) ◽  
pp. 45-54 ◽  
Author(s):  
Yayah Rodiana ◽  
◽  
Daam Settachan ◽  
Thundorn Saneanukul ◽  
Jerry Diamond

2020 ◽  
pp. SP506-2019-209
Author(s):  
C. V. Burek

AbstractIn May 1919 the first female Fellows of the Geological Society were elected and from then on attended meetings at the Society. The first person on the female fellows’ list was Margaret Chorley Crosfield. She was born in 1859 and died in 1952. She lived all her life in Reigate in Surrey. After studying and then leaving Cambridge, Margaret had sought to join the Geological Society of London for many years, in order to gain recognition of her research work, but also to attend meetings and use the library. This paper will look at her history and trace her geological achievements in both stratigraphy and palaeontology, as well as her extraordinary field notebooks that she left to the Geological Survey. She worked closely with two female geological colleagues, Mary Johnston and Ethel Skeat. Margaret Crosfield epitomizes the educated, amateur, independent woman who wanted to be recognized for her work, especially fieldwork, at a time when female contributions, especially in the field sciences, were not always acknowledged or even appreciated.


Author(s):  
M Sabokrouh ◽  
SH Hashemi ◽  
MR Farahani

The coexistence of high levels of strength and toughness is necessary for the microalloyed steels used in natural gas pipelines. The welding thermal cycle can significantly change the microstructures and therefore the mechanical properties of the girth welded pipelines. Thus, the experimental investigation on the welded material properties is required for assessing the structural integrity of the pipelines. In this article, the metallurgical characteristics of the multi-pass girth welds on API X70 steel pipes with 56 in outside diameter and 0.780 in wall thickness were determined for the first time using chemical analysis and standard metallography. The chemical analysis showed different chemical compositions in different weld passes. The amount of carbon in the weldment increased in comparison with the base metal, although the microalloy elements in the weld gap decreased by increasing the pass number. The metallographic investigation by optical microscope demonstrated the different microstructures in different sub-zones of the welded joint. The images obtained from scanning electron microscope also presented the dendritic and acicular structures in the root and cap passes, respectively. The observed hard phases in the weldment, such as martensite, had direct effects on the mechanical properties of the weldment and heat-affected zone.


2013 ◽  
Vol 58 (5) ◽  
pp. 1284-1288
Author(s):  
Ksenija Zelic ◽  
Danijela Djonic ◽  
Olivera Neskovic ◽  
Milovan Stoiljkovic ◽  
Slobodan Nikolic ◽  
...  

2021 ◽  
Vol 2131 (4) ◽  
pp. 042045
Author(s):  
F Burkhev ◽  
H Kushiev ◽  
T Juraev

Abstract Our article describes in the results of the research the polymerization of the residual (brown tint) after the separation of useful cabocylic compounds (indene) from the composition of one of the important fractions of heavy pyrolysis oil (indene and its homologues), which are considered to be a brownish product formed on the basis of natural gas pyrolysis, and the molecular mass and physical chemical. As a result of the analysis of the infrared (IR), it was known that the product contains functional groups (-C=C-) with a polymerizing property, along with an aromatic ring, and the polymer is made up of a mixture of isomers of polyvinyl toluene. The molecular mass of the polymer (MM) in the viscometric method was determined as the best solvent of benzene in the process of maturation, the macromolecular mass and the degree of polymerization (p) were determined as a result of the studies conducted.


Author(s):  
R. Sinclair ◽  
B.E. Jacobson

INTRODUCTIONThe prospect of performing chemical analysis of thin specimens at any desired level of resolution is particularly appealing to the materials scientist. Commercial TEM-based systems are now available which virtually provide this capability. The purpose of this contribution is to illustrate its application to problems which would have been intractable until recently, pointing out some current limitations.X-RAY ANALYSISIn an attempt to fabricate superconducting materials with high critical currents and temperature, thin Nb3Sn films have been prepared by electron beam vapor deposition [1]. Fine-grain size material is desirable which may be achieved by codeposition with small amounts of Al2O3 . Figure 1 shows the STEM microstructure, with large (∽ 200 Å dia) voids present at the grain boundaries. Higher quality TEM micrographs (e.g. fig. 2) reveal the presence of small voids within the grains which are absent in pure Nb3Sn prepared under identical conditions. The X-ray spectrum from large (∽ lμ dia) or small (∽100 Ǻ dia) areas within the grains indicates only small amounts of A1 (fig.3).


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