670 SCIENXE PROGRESS 



in AncoBS, 1794-1S(VL By Edgak F Ssora. [Pp. 173.: 

 rFtu}adei|dbda : P. B'.i^5t-z"5 Sc- a: Cc.) 



Th2 antb^or opens T<t^ text - ' "= ■«-rrls : "' There lies befcre the ■writer a 

 •nbe zi gis-ss, devai and one \ _; .- chrS ir length and a qnarter cf an inch in 

 diameter. . . . Artacherf to the mbe is a bit of paper nprn which appear the 

 words ' piece cf tubing osed by Priestley.' That legend has — ade the tube 

 preciois in the heart and to the eye cf the writer." One -wishes that there 

 w^ still a Calverley to enshrine this Cr— with the histcrlc cherry stcnes. 



There fellows an attempt to give ?-~= -:r-nnt of Priestley's life in the 

 United States in which his scientific - ' :y. : : ; -Ties btrt a miner part. The 

 major part of the book deals with addresses of welcome, defences frcm 

 theofc»gical and political cpponen-^ --- r---:p —hich, while they add little 

 to our knowledge of Priestley, si. : ire ; r rr oversialist's path in the 



United States was little smoother than m England. 



The anther n^-g the nnfcrtnnate disability cf b-eing unable to refer to 

 anvDnblic character without cne cr mere analifying adjectives, a habit which, 

 ccniJled with a general lack cf style, is very irritating to these acqnainted with 

 the 'classical essav cf Sir Edward Thorpe whcm the anther characteristically 

 refers to as the noble-heart e-f sympathetic Themas E. Thorpe. The author 

 is iH-advised if he thinks tiu - r: i 1 rtien will add cne iota to the reputa- 



^ .---r-- .♦ O. L. B. 



Dedmology of Gelatin and Glue. By Robert Herman 

 BoGCE, M-Sc, Ph-D. (Mdlon Institnte Technological Series^. [Pp. 

 ad 4- 644, with iiS figtrres.] pfew York and London : McGraw- 

 H:I1 B: ck Co., 1922. Price 305.) 



Hrr=:£5.TO an bo has had occaacm to deal with gelatin and glue has 



known that t_.- . 13 an immense amoant of information scattered through 



the various scientinc and technical j ourn als of aH conntries, bnt at the same 



tin: .-_-,-- —-^ the fact that tha-e was no adequate sum- 



m ■--—■" e : ct >r-reova-, the existing data were so varied 



ia rb - - = -nradictray that the task of making a 



g -.r y wl, - -t: :-r :v er than a mass <rf apparraitly discon- 



------ '- — = - J, --1 — s. Dr. Bosne, b owevg . who is well 



lez : ' : : . ; :o rr'-itin and glue, has not been dismayed 



bv - T - ; ; ::rt " a^i '15 : een eminently sncce^nl in corre la t in g 



ani i^ - r -"-^ nie.ten^ it nis disposal and in giving a clear and 



reada': ' " e snbiect. Afto" an introduction dezlLng with his- 



the theoretical aspects of the subject 



^ -op stituli on of the proteins; the 



the physico-chemical properties 



1%-ODniIe and as an amphoteric ccdloid. 

 In "bis tart zi z-.t zzzjz z—'.- • :=~:r :? f--e to the pioneering work of 

 Ft:::: Panli. Loeb. ani Zri.l:: ::: '} ~z~\ - if anvthing, the author 

 is = - : : - ; T v : : ? : "- ^— - : n, whose peculiar 



The second 1 10- :: - \t ': : :i: iealswith the technological aspects of the 

 manufacture -- :.o; .to-::: loi'Tsis, use- ' " i - "'cations of gelatin 

 azMl ^ne. Tot c - ^ ':ls.tz. is 'b-t c: cbe zz^zzi^zz rather than that 

 a< the jdant t&: i this zz. :.-- cne appeal of the book all the 



gieate r to '^ .: l- c ovestigacr 7;^ -^ /c' :logist, however, does 



hxve lie c-r : c rs underl>-.n^ c t - :r.:us processes brought 



■vay deac : ct ' - coi cannot fail c: cccnt from a close study 

 of Hiebo:^ T - z ncTical chat-^r co ■ rr-:^:-- ot glues and glues 



of ntarine :r:^ _:o 10: oil b«e reao m ::n ;_n:c::o - .ch the first report 





<a._LLi i — ^1 — "r -- -T-i _T.-..__ ^3cii.> 



