No coin nor oath required. For personal study only.
Pepsin, thanks to Northrop, is a hnown crystnllinc compound nnd therc arc strong grounds for regarding it ns itself R protein. Tho samc workcr has obtaincd crystals of trypsinqgen, which is an innctivc protcin convcrtiblc into act#ivc tryptasc.
The author is doing good work in establishing n nomcnclaturc for thcsc enzymes which, though a t first Right it may tippear awk\vard and cvcn iuvolvcd, ie highly dcsirablc in thc interests of accuracy and ultimatc simplification. E. F. A. process, t;lic wholc oxygen consumption consisting of three parts which miiy be distinguishcd :is I' hsmin respirtition, light respinition i i n d rest respiration." It, is gcncrally nssiimcd that tdic light rc:iction consists in the dchydrogcnation of t i sulxitimcc Inbcllcd " lucifcrin " by ill1 pnzynic, lucifcriise. A ncw nianornctric nictliod for tlic enzymiitic tl~tcrniiniit~ion of argininc by Hunt,dr ant1 Pcttigrcm of Toronto is of importslice in conticxion with protcin hytIrolysnt.cs :utd t,rypt,ic digests.
EXZYYalOLOGIA.
๐ SIMILAR VOLUMES
detriil is gcncriilly given t.0 ciinblc the process~s to be worked nccurntcly. 'I!hey sl~ould be very uscful to aturlcnt.~, ~vhet~her C;ernin ti or J3ritish.
## CHEMISTRY AND mDusritY 423 usititlly cinployetl titid of it rottttioiiiil systcm for all o w :irtiblc Iitnds with :it lctist thee ye:irs untlcr gritss. The I)oolc is in gcncriil iiistriict,irc nntl intcrcsting and slio\vs tlic rcdcr how wry csscnti:il is n knowlctlge of t.lic soil to thc f:irii
## WDUSTRY 1023 properties, rind ti description of its conipounds. Much of the work incliidcd is rclativcly recent t i i d will not he found iii niiy othcr single work. l u the four parts of whiclt tioticc is just given, the relevnnt literatitrc hns been consultctl up to tlic cnd of 1937. 1' . L