104 REPORTS ON THE STATE OF SCIENCE.—1917 2 
in connection with ageing, percentage of camphor, temperature, and 
brittleness of the finished product. 
(2) The absorption, diffusion, and equilibrium curves of carbon- 
di-oxide are determined and discussed. - 
(3) The stability of the colloid against latent acidity is considered, 
together with the so-called antacid treatment. The efficiency of the 
latter the author considers to be dependent on the size of the molecular 
aggregates suspended in the colloid. 
COLLOIDAL AND CAPILLARY PHENOMENA IN THEIR 
BEARINGS ON PHYSIOLOGY AND BIO-CHEMISTRY. 
By Prof. W. RamspEn, Bio-Chemical Laboratory, University of Liverpool. 
BIBLIOGRAPHY. 
General. 
Bayuiss, W. M. (1915), ‘ Principles of General Physiology,’ pp. 816 (Longmans & Co.). 
Matuews, A. P. (1916), ‘ Physiological Chemistry ’ (Bailliére & Co.). See pp. 190- 
265 on ‘The Physical Chemistry of Protoplasm.’ 
In the two books cited will be found full references to literature and an 
admirable treatment of the following subjects :— 
Adsorption. The Ultramicroscope. Dialysis. Ultra-filtration. Gels. Im- 
bibition. Salting-out. Permeability-changes in cell-membranes during excitation 
or narcosis; Hzmolysis; Secretion; the Nerve Synapse. Osmotic pressure in 
its relations to—volume-changes of cells ; effects of drugs; root-pressure; lymph- 
production. Enzyme action as a surface-phenomenon. 
BarGER, G., and Fretp, EH. (1912 and 1915), Blue Adsorption compounds of Iodine. 
‘Trans. Chem. Soc.’ 101, pp. 1394-1408; and with Starxina, W. W., ‘ Trans. 
Chem. Soc.,’ 107, pp. 411-424. 
DreYeER, G., and Dovatas, J. 8. C. (1910), The Absorption of Aglutinin by Bacteria 
and the application of physico-chemical laws thereto. ‘Proc. Roy. Soc.’ B. 
82, pp. 185-205. 
Minzs, G. R., Die Einfluss gewisser Ionen auf die elektrische Ladung von Ober- 
flichen und ihre Beziehungen zu einigen Problemen der Kolloidchemie und 
Biologie. ‘ Kolloidchem. Beihefte,’ Bd. III., pp. 191-236. 
SasBpatinI, L., Adsorptive effect of Colloid Carbon as Antidote to Strychnine, ‘ Arch. 
di Farmacol.’ 16, pp. 518-524. 
Corians, M. (1913), The Action of Asbestos and allied materials on bacterial pro- 
ducts and other substances. ‘ Brif. Med. Jour.’ 1913, vol. ii. p. 1360. 
Enzymes. 
Baytiss, W. M. (1914), ‘The Nature of Enzyme Action,’ pp. 180, 3rd edit. (Long- 
mans & Co.) 
Dony-HEnavtt, Octave (1908), ‘Contribution 4 1’étude méthodique des oxidases.’ 
‘ Bull. Acad. Roy. Belgique,’ pp. 105-163. 
Coagulation of Proteins. 
Cutox, H., and Marrm, C. J. (1910 and 1912), ‘ Heat-coagulation of Proteins,’ ‘ Jour. 
of Physiology,’ 40, pp. 404-4380; 45, 261-295. 
RamsvEn, W., ‘ Mechanical Coagulation of Protein’ (1894), ‘ Archiv f. Anat. u. 
Physiol.’ pp. 517-534; ‘Separation of Solids in Surface-layers of Solutions ’ 
(1903), ‘ Proc. Roy. Soc.’ 72, pp. 156-164. 
Bancrort, W. D. (1915), ‘Coagulation of Albumin by Electrolytes,’ ‘ Jour. of Physical 
Chem.’ 19, p. 349. 
Permeability of the Surfaces of Cells. 
Lititz, R. §. (1912), ‘ Antagonism between Salts and Anesthetics,’ ‘Amer. Jour, 
«4 of Physiology,’ 29, pp. 372. 
