NEW eooI& A LABOMTQRV MANUAL.CO.NTAININCDIRSXIOS~ COR PILUYKNTS I N O R G A N I C C H R M I S T R V .
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S Y S T U M A T I C A U Y ARRANGiCt, TU
ACCONPANYK E Y S 8 N ' S ORGANIC C M E M I S T R V . BY 'A'. R . O R N D ~ R Y Y , A . R.. h { . I ) . , ASSISTAYT Y R O F F S S O R OP C H I I Y I S T R Y I N C0RNICI.I. [ ' S I . V ~ R S I ~ I). . C . ficath h Co. rrmo.
This book, printed on one side of the paper only, to leave rooiii for notes evidently. contain9 directions for eighty-two e x p i nients, beginning with Fractional 1)istillation arid ending with "Alizarin." T h e apparatus used is a9 simple as tlic nature of tlic work will allow and the questions asked or i n dicated by nieaiis of an interrogation mark seem to k judicious. T h e directions txar evidence of having k e n tried carefully i n practice. The absolute necessity for this would e m to be selfevident, but I veritrire to .say that i n very many books of ttir kind it has nevertheless not been done--so much the worse for the unlucky student who repeatedly endeavors to do the impossible txcause his authority is good. It cannot be too strongly insisted upon that such books ought either to t x put together E. I t . conscientiously or not at all. "
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T M XI'MARUACOIWIA
O Y TMY. ('SITEt, STATK!! OF AMERICA. SK\'ENTtI DECESSIAI. Wy.visios ( 1 % ) . Official Iroui Jauuary I , 1%. Publishel b y the Committee of Revision. Philadelphia : J . R. Lippincott Cornpan)'. A ~ p t i t s .1'. nlakiston, Son s( Co. 1893.
Thc P h a r n i a c o p i a of the United States has become a book d considkrable dimensions-bo2 pages. T h e metric system has been eniployed throughout the volunie, the solids by weight and the liquids by measure. Of the coal tar antipyretics, acetanilid is the only one admitted, because the others are either made by a patented process or their names have a proprietary right. Among the articles added to the P h a r n i a c o p i a I notice peroxide of hydrogen, convallana, cocaine, hyoscine, sparteine, strontium bromide, anti pepsirr ( I : 3000). T h e terminal " e " is retained for chlorine, cocaine, bromide, c l olleru. Instead of writing chloride of sodium, or nitrate of silver, the committee make it sodium chloride, silver nitrate, and so on, putting the base first. In the case of the d t s of iron and mercury this change involved the use of the respecth-e
