The mecroscopical examination of coal. By C. A. Seyler, B.Sc., assisted by W. J. Edwards. Department of scientific and industrial research. Fuel research. Physical and chemical survey of the national coal resources no. 16. Pp. vi + 67. London: H.M. Stationery Office, 1930. 2s. 6d
โ Scribed by Marsden, Arthur
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1930
- Weight
- 266 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0368-4075
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โฆ Synopsis
American Notes
I n conncsion with tlic rayon manufacturing co~~rscs offered at thc Clcinson Collcgc, S.C. Textile School, tlie latest type of \Vcstinghousc totally cncloscd, individual motor-driven pot spinning apparatus has just bcen installed. Other ncw rayon equipment includes Wicano piston and gear spinning pumps, liard rubbcr candle filters, hard rubber dycing, diiimtising, and bleaching tanks.
The Tcxns Potash Corp. is to construct n works for tlie production of potash froin a n cxtcnsivc deposit of polylintitc orc by a ncw proccss duc to Dr. E. I?. Scliock, of Tcsns Unircrsity.
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l'liis is :I tlctriilctl histtrry of tlic coiirsc of Lnvoisier's \vork and its itispiratioas fronl 1773 to 1776 ; t h t is, from tlic tiiiic of his first iiotc iipoii tlic iilisorptioii of iiir hy Iiimiiig pliospliori~s iiiitl siilpliiir, up to his isoliit ion ~~rrcliitctl his iiiiitcriril with Iiig
All!& 14, 1025 16.6' C. of Thorp's Table . Thcrc also occur tables for calculntiug perccntagcs of alcohol by tho Zeiss iuimcrsion rcfrnctonictcr, and for thc cryoscopic estiiuation of nclcled water in iiiilli. Altogctlier t,lie work contains an ixnnicnsc amount of inforinntion, and presents n vcry
Tlic estciisivc bibliogrripliy a t tilo cnd will no doubt bc fonncl very uscful to studcnts of t,hc snbjcct, nnd should savc much time arid troul)lc ot.hcr\risc ncccssnry in scorching tlic litcniturc. 1 hc book is well printed 011 good p ~t p r ~ n11d is reninrkably frcc from typogrnphicnl errors.
CHEMISTRY AND INDUSTRY ## 1U3D inakcrs iirc sufficient to sliom thnt the vnciiiini drying plaiit is iisiiitlly superior to any forni of nir-drying plant. This clinpter is such n fsrrngo of iionscnsc that onc is conipellcd to wondcr wlictiicr tlic author Iins cvcr seen a vacuum drying plant. hppn