In liis prcfncc Prof. Tniincr addrcsses himsclf to his prospective stutlcnts nlid endcnvours to secure their intercut. lic is ' I more interested in the opinions of students \-it11 regnrrd to tlie book t h i i in thc opinions of those \vho lirirc long siuce lost tlicir active contnct with begiiiners, ercn t~liough they inny I~rivc positions niid titles wliicli imply sncli Tlic rcvicwer lins been in rictirc contrict with beginners in this siibject for 25 ycnrs, niid considcrs tlitit t,lic opinions of be,' ~inners on the subject of inctliods of tcncliing l~nctcriology nre not inspired froni on liiglt.
One is ntrnirl thnt, in spite of his colicern for t.he striilent's \vclfnrc, or pcrlirip.q I J C C ~~I S C of it, iu nctiinl practice Iiis mniii concerii is to ninkc ccrtaiii that no fact is oinittcd thnt lins :illy 1JCfirillF 011 the sul~jcct. He trikes :is liis subject tlie ~-liolc rcnliii of liacteriolon from its history to theories of inininiiity, soil bnctoriology, and the 1)repnr;ition of coni~ncrcial yeast. I-Ie cnnnot do this in 5 M pges ~~-itliout giving iiiiiny sohjccts sucli supcrficiiil trciitnicnt that tlic stuclcnt gets to know notliing iil)oiit tlient csccpt tlic h r c IJOIICS of no~ncncliiti~re. His nrrii~ige~ne~~t of tlic suljcct is ns follow :-'l'Iie first six clinptcrs (136 pages) iirc given over to gcncrnl consitlerntions, Iiistory, cell-structure, clnssificntion, clieeiicd coiiiposition, etc. Tlicii conic thrcc chnptcrs, one each to tlic iiioiilds, t,lie yensts, and the protozoii. Cliiiptfm X-XYII (incliihivc) nrc