β Scribed by Tucker, Samukl A.
No coin nor oath required. For personal study only.
BY BITULL A. TUCXER. R o o e s r s of nitrogon fixation at pwecnt divido thornmlvos into two olnsmbhigh tonsion am fixation, and ohomical absorption. With tho formor m havo a long Line of brilliant rmoarnbes, from tho oar1 oxporimonte d Cavondish to thorn of Lord Raylc' h, %oDoiigall and Howlor, Muscioki, Guyo, Bradloy a n 3 b v e j o y , f i b e r . N o m t , oto., and down to tho commcrninl proccsrs of Birkchnd and Eydo, Pauling. and Soh6nhorr.
Tbo c a r l h t work in oonncotion with absorption moth& ~bom to havo be00 dono by Jacobs in thin country and by R . n k in Europe, and they both found that by treating & r i m oorbdo with nitrogen a t a lomr tomprature than that neoeamry for its formation in the olcotrio fumaoo b r i n m oyanido was formod; as a mattcr of faot tho d u c t oonsistnl of a mixturn of oyanido and ojranainido. &ho method uncd avo ncithor a uniform procfuot nor a Mtidaotory yicld, kcoaueo tho csrbido was not all at tho r tompornturn, nor was this tom ratum known, and G . c r tho matorial was not in suoR"a porous stato of division that propr absor ition could L k o plaoo.
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