No coin nor oath required. For personal study only.
'l'crliaps enough hns hecn said to wlict tlic appetite of tlic rcndcr to study the nionograpli for l~iinself ; lie will bc richly rc\*ardcd. W e bclicvc wc :trc correct in saying that this is the first prim:iry inateriiil of orgnnizctl life for wliicli the chcniist lius pro~luced cviclcncc in support of tlic cvolationist. It is not uncspcctcd, since csteriitil chnractcrs must depciid on intcmiil chcniicnl coinponcnts, but iionc the less it iiiiirks a victory for scicnce. E. F. A.
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The date on which the review appeared is given in brackets at the end of each e n t r y CHEMISTRY I \ ~~~~~~~~~~~, E. P~nn.r.cnuiitoi~ucli~ingcn, ICondbucli dor ' ~3iologisc)ic1i Arboitsmcttroelcn. A h . . Xl. l'nrt 2. Xo. 4. Pp. ti5ti-7G4. Rcrlin : Urban rind Scliwnrmntmrg, 1924. l'rico 5% Swiss fr
## 112G Ort. ?tl, 1eca JL\tcTrsi),ir.n, \\'. li. (liuviscrl by). TIic ICstrii Plinrtiinco- po:iti of JLrLindiilc i i t i t l \\'rstcott. 19th ctlitioti. 1'01. I. 1' 11. sssrifl207. J,oridon : H. I<. I m i s k Co., Ltd., 1028. 27s. (Id. (July 20, 1925.) K~.:iir,~.i\*i\*e, C. 73. Photoptphy : Its Ir