502 EXPERIMENT STATION RECORD. [Vol. 3T 



arachin and conarachin previously isolated from the peanut (E. S. R., 37, p. 8) 

 were analyzed by the Van Slyke method (E. S. R., 26. p. 22) with the following 

 average percentage results as to nitrogen, respectively: Amid, 11.81 and 11.08; 

 humin adsorbed by lime, 0.57 and 0.65; humin in nniyl alcohol extract. 0.43 

 and 0.13; cystin, 0.74 and 0.75; arginin, 23.77 and 25.78; histidin. 2.78 and 

 2.72; lysin, 5.22 and 6.35; amino of filtrate, 53.3 and 50.23; nonamino of filtrate, 

 1.65 and 1.94; total, 100.27 and 99.63. 



It is indicated that the relatively high percentage of lysin in the pe:inut 

 proteins might make it.s use advantageous in supplementing diets deficient in 

 lysin. 



Levulose the preponderant sugar of apple juices, J. R. Eokk. .ib. {Jour. 

 Indus, and Engin. Vhem., 9 {1911). No. 6, pp. 587. 588).— Tabular analytical 

 data relative to the acidity, gravity (Brix), sucrose, levulose, and dextrose of 

 the juices of 20 varieties of apples are reported. The data show that in all 

 ca.ses the amount of combined levulose exceeds the amounts of the otli«n- sugars 

 present. 



See also a previous note by Thompson and Wliittier (E. S. K., 29, p. 711). 



Sedoheptose, a new sugar from Sedum spectabile, I. F. li. L.\ Four.E and 

 O. S. Hudson {Jour. Biol. Chem., SO {1911). So. 1. pp. 61-77). 



The rotatory powers of some new derivatives of geutiobiose, C. S. Hud.son 

 and J. M. Johnson {Jour. Amcr. Chein. Soc, 39 {1911), No. 6. pp. 1272-1211). 



The inosit phosphoric acids of cottonseed meal, J. !•. Rather {ArUansam 

 Sta. liul. 131 {1917), pp. 3-20).— The author has isolate«l from cottonseed 

 meal as the crvstalline strychnin salt an inosit pliosphoric acid which cor- 

 responds to inosit triphosiihnric acid, C.H.(OII),( HiI'Oj. The acid was found, 

 however, not to be of constant occurrence in cottonseeil meal. From other .sam- 

 ples of cottonseed meal an acid was isolate<l which agrees with the formula 

 CiiH4iO«rt of the inosit phosphoric acid previously isohited from cottonsoeii 

 meal and other feeding stuffs (E. S. R., 29, p. 804). "The composition 

 corresponds etiually as well to that of salts of Inosit pentaphosplior!'' acid. 

 Cai.(OH) (HJ'O,)., and in view of the similarity of the formulas and the 

 theoretical possibility of the existence of inosit ponlai»bosph<iri«' a<id it apjiears 

 best to ascribe the latter formula to the acid." 



Products prepared according to the method of Anderson (K. S. K.. 31. p. 707) 

 did not yield strychnin and silver salts which were similar to the salts of inosit 

 hexaphosphoric acid claimo*! to have btH?n Isolated. "The composition of the.»<e 

 mnterials agreed with that calculated for salts of inosit pentaphosphoric acid." 



Experimental data are submitted in detail an<l discus.sed. 



The chemistry of wood, .\. \V. Schorcek {Jour. Indus, and IJngin. Chcin., 9 

 {1911), Ao. 6, pp. 556-566, figs. S). — Two studies are reporteil. The first takes 

 up methods and results of analysis of some American species. Tabulated 

 analytical data of longleaf pine, Douglas fir, western larch, white spruce, bass- 

 wood, yellow birch, and sugar maple are reporte<l. together with a description 

 of the methoils of analysis used. In the secon«l paper a general di.s<u.ssion is 

 given of the methods u.sed and the analytical results obtained. 



The chemical composition of the higher fractions of maple wood creosote. 

 E. J. riKiM:u, S. F. AcuKK. and (". .1. HrMi'Hi!i:Y {Jour. Indwi. mni I'.nain. Cfievi.. 

 9 {1917), No. 5, pp. ^62-^65. fig. 1). 



On the toxicity to a wood-destroying fungus of maple wood creosote and 

 of some of its constituents and derivatives, together with a comparison with 

 beechwood creosote, E. J. Pieper, S. F. Acree, and C. .7. Hiwiphkey {Jour. 

 I)ulu!<. and Engin. Vhcin., 9 {1911), No. 6, pp. 566-569. ffgs. 2). 



The application of Ghodat's paracresol-tyrosinase reaction to a study of 

 the proteolysis by microorganisms, .\lice Brislaier {Bui. !^ov. Bot. Gcn^te, 



