Oils, fats waxes and their manufactured products. By Alder Wright and C. Aineworth Mitchell. Third eition, revised and enlarged. Pp. xiii,+939. (London: Charles Griffin and Co., Ltd. 1921.) Price 56s. net
✍ Scribed by Armstrong, E. F.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1921
- Weight
- 151 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0368-4075
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✦ Synopsis
~'lllOliT tilid c. h N S -
1'ltOUUCTS.
WOIITII &~ITCIII:LL. Third edition, revised and cdtrrycd. l'p. ziii.+939. (London: Clrnrles Criffiii and Co., &td. 1921.) l ' r k c 5Gs. n e t . This is n third edition of Dr. Aldcr Wright's aollknown book, first piiblislicd in 1893. The litcrntiiro in this ~inrticrrlnr field-is so lnrgo that a sclcction from tlio niiiss of nvnilnblo nintcrinl is ncccssnry, espccinlly from tho point of vicrv of tlio rcndcr who riowndnys finds it incrcnsingly linrd to obtnin +0 infornintion 110 wants from rcfcrcnco ~rorlrs contnining n tliousnnd pngcs nntl upwnrds. An nniplo indes, tcxt-nnd pngc-licndings and cspnndcd contents nro nll of nssistnncc if cnsy rcfcrcnco is to be fncilitntcd ; on tlio wholc the book is sntisfnctory in this respect, thougli i t Imclts nn niithors' index. Tlic scopc of the trorlr lins bccn but littlo nltcrcdi t cnibrnccs in turn tlio gcncrnl composition, ~~11ysic.d nnd clicinicnl propcrticrj of oils and fats, tho proccsscs uscd for atrncting, refining nnd Iilcncliing tlioni, tlicir classification and uses, and then dcnls spccificnlly nnd a t sonio length with the cnndlo industry niid tlio aonp industry, including the inanufncturo of glycerin.
Tho inoro purcly clieinicnl portion runs on con--cntionnl lines, but grcnt pains Iinvo h c n tnltcn wit11 tlio csscntinlly tcclinicnl portion, tho vnluc of nliicli is cnlinnccd by dingr:iins nnd illustrntions. 2\11 tho pntcntcd nnd ndrcrtiscd proccsscs rcucire full recognition, but no guicliiiicc is given t o tho student :is to wliicli of tlicsc nrc succcssfiil i n prncticc. Sncli n mctliotl of trcntnicnt is co~n~iioli to Iiooks of this class, biit it lcnds to tlic unfortunate rcsult tlint in soine instniiccs processes nro d~scribcd a t lcngtli wliicli nre Icnowii t o be :I f:iiliiro i n prncticc; tho rcndor is in no way guided as to sliicli nrc tho rcnlly prncticnl processes coninionly in nsc in tho industry. ~\ltIioiigli in sumo inclustrics it is difficult t o obtnin infornintion conccrning tho proccsscs in opcrntion this is fnr from h i n g tlio cnsc gcncrn11y. yiic bitd 'intiucitcc of tiiis stnto of affairs on our cdiicntionnl systcin is obvious, and whilst ono would not wisli tlic writor of n tcclinicnl iiionogrnpli to bo n pnrtisan, 110 sliould cqunlly :ivoi? h i n g mislcd 1)y ir1i:it is Iiirgcly specinl ~ilcnding. I t is not intended to iinply tlint &lr, I\litcli~ll's book is spccinlly dcfectire froin this p o ~n t of YICW, but n pcrusnl of rcccnt tccliriicnl liternturc lins coiiriiiccd the rorio\vcr tlint tlic subject rcqnircs vcntilntion.
Any criticisni i n detail of such n work is impossible, 2nd it niny bc conIidc~itly stntcd t h a t tlie I ~C W ccIition will cnjoy tiic snniu ~; i g ~i rcputntian ns its prcdccessors. Nccdlcss to say, it lins bccn bronglit fidIy u p to dntc in nll tlint coiiccrns tho teclinology of oils and f:its.
E. P. AI~USTI~OSO.
-]{,\l*Ill ?dlZTlIOUS Yolk TlIE CllEJUO,\I, ANAIXSIS 0 1 " ~lltXXL\l, STKIPlrS, ~l ' ~l ~l , -~l A l i l S O ArAoYs, TlIEllt