ON COLLOID CHEMISTRY AND ITS INDUSTRIAL APPLICATIONS. 37 
Nevgevy, J. L., ‘ Allgemeine Gerber-Zeitung,’ 15, Nr. 15. (Abst., ‘ Coll.,’ 1913, 12, 
409.) 
‘Das Weissgarleder.’ 
Tannage with partially precipitated alumina salts. 
AposToto, C., ‘ Coll.,’ 1913, 12, 420. (Eng. abst., ibid., 547.) 
“Ueber die Gerbung mit frischgefilltem Schwefel.’ 
Wuutams, O. J., ‘ Coll.,’ 1913, 12, 76; ‘J.A.L.C.A.,’ 1913, 8, 328. 
* Enquiry into electrical tannage.’—Preliminary note. 
Ripwat and Evans, ‘ J.S8.C.1.,’ 1913, 32, 633. 
‘Electric Tannage.’ 
1914, 
Woop, J. T., ‘ Coll.,’ 1914, 18, 305, and‘ J.A.L.C.A.,’ 1914, 9, 318. 
‘ Light leather liming control.’ 
Ibid., ‘ Leather Trades Yearbook,’ 1914, 152, and ‘ J.A.L.C.A.,’ 1914, 9, 390. 
‘Some remarks on liming,’ 
Mevnier, L., and SeveweTz, A., ‘ Coll.,’ 1914, 18, 532. (Abst., ‘ J.A.L.C.A.,’ 1914, y, 
379.) 
“Sur les propriétés tannantes comparées des différentes quinones.’ 
Powarnin, G., ‘ Coll.,’ 1914, 13, 634, from Abst., ‘J.A.L.C.A.,’ 1914, 9, 567. 
‘ Active carbonyl, and tannage with organic substances.’ 
Tbid., ‘ Coll.,’ 1914, 13, 659. 
“Formula on swelling of hide with acids.’ 
Faurion, W., ‘ Coll.,’ 1914, 13, 707. (From Abst., ‘J.A.L.C.A.,’ 1915, 10, 66.) 
Reply to Powarnin on theory of leather formation. 
Van Tasset, E. D. J., ‘J.A.L.C.A.,’ 1914, 9, 236. 
“A new emulsifying agent ’ (Stearamid, ‘ Duron’). 
Mottrr-Jacoss, A., ‘J.A.L.C.A.,’ 1914, 9, 234. 
‘A contribution to the history of a new industry ’ (Stearamid), 
Lamp, M. C., ‘J.A.L.C.A.,’ 1914, 9, 359, and ‘ Leather Trades Yearbook,’ 1914, 127. 
* Colloidal Tannins.’ 
Tannage by mixtures of ‘ Tragasol’ (Locust-bean mucilage) and quebracho in 
Wittiamson, C. G., ‘ Leather Trades Yearbook,’ 1914, 359. 
Sy (2).% 
ee between acidity of liquor and yield of leather. 
Sommernorr, E. O., ‘ Coll.,’ 1914, 18, 3. (Abst., ‘J.S.C.1.,’ 1914, 33, 152.) 
‘Ueber das Léslichmachen von ‘‘ Gerbmehlen ”’ (phlobaphenen) durch Hydrolyse 
* mit Schwefligersiiure, und iiber die Wirkung von Dextrineglucosezusiitzen zu den 
Gerbstoffglucosiden.’ 
Ibid., ‘ Coll.,’ 1914, 18, 81. 
*‘ Ueber Gerbmehlen (phlobaphene) und tiber verschiedene Reaktionen der Hydro- 
lyse (Phytolyse).’ 
Ibid., ‘ Coll.,’ 1914, 13, 225. 
* Ueber Pikrinsiiure- und Chinongerbung.’ 
Ibid., ‘ Coll.,’ 1914, 13, 325, 369, 499. 
‘Theorie des Farbens, Beizens und Gerbens.’ 
These papers advance a theory that all tanning depends on the presence of a 
* peptisable ’ substance, a ‘ peptisator ’ or solvent, and an ‘ acceptor ’ (the hide) which 
again precipitates the sol. The theory may be true of certain cases, but is certainly 
not so universally, as the author appears to claim. 
Koun-Asrest, E., ‘ Bulletin des Chimistes de Sucrerie et de la Distillerie ’ (through 
“Tech. Sup.,’ No. 7, to ‘ La Halle aux Cuirs,’ 5 Apr. 1914.) 
Tannin compounds produced by Al-Hg couple, and a suggested method of tannin 
analysis. (Trans., ‘J.A.L.C.A.,’ 1914, 9, 260.) 
1915, 
Sommernorr, E. 0., ‘ Coll.,’ 1915, 14, 26. (From Abst., ‘J.A.L.C.A.,’ 1915, 10, 
331.) 
The new dehydration theory of leather formation as opposed to the oxidation 
theory. 
