I3ranilno. l'p. 3'20. S. Pnulo: Conip. Rfelhornmcntos dc Sno Pnulo. $12. Into his trcntisc oil prncticnl clicmistry Scnhor Sonrcs Br:indno Iins succccilcd in introducing sevcrnl novel fentiires \vliich sliould aroiisc tlie intcrcst and cntliusinsni of tlic Brnzilinn studcnts for whom it lias becii coinpiled. Tli? opcning sections of the tcst-book dcal with tlic matcrials cmployed in thc construction of liiboratory nppnrntus, iinmcly, iisI)cstos, rubbcr, girttn-pcrclin, porcclriiii, gnlilss, tlunrtz, niid tlic nictnls, including lcnd, coppcr, brnss, niclicl, iron, stccl, plntinuin, niid zinc. 11 clinptcr tlicn follows on laborntory opcr:itions, such as pulvcrisntion, solution, prccipi tation, fil trntion, crjstnllisntion, nnd distillntion.
A concisc survcy of tlic non-metals contnins more tlinn 200 typicul espcriincnts on tlicse clci~icnts find their coinpounds. lkmictlics lint1 nntklotcs arc suggested for cases of poisoning with tlic morc tliciigcrous of such clicniicnls. A judicious sclcctioti lins bccii midc of thc metnllic elements, including most of tlic coiiiinon metnlo, nnd nlso gold, iridium, iind platinum. Wct and dry tcsts arc indicated, nnd the rnicroclicmicnl cliarnctcristics of rcprcscntntire riictnllic compounds arc dcscribcd.
Thc book is profuscly illustrntcd, and there are iniuiy useful data gircn in tabular form and a comprcbcnsirc index. To the English chcmicnl student this trcntise may be rcconimcndcd as nn ensy introduction to tlic study of I'ortugucse.