300 Proceedings of the Royal Society of Edinburgh. 
Preller (C. S. Du Riche). Physiographic Analogies between Scotland and 
Italy. (Reprint from The Scottish Geographical Magazine , vol. xxxiv, 
Nov. 1918.) ( Presented by the Author.) 
Recueil de Constantes Physiques. 4to. Paris, 1913. ( Presented by La 
Societe Frangaise de Physique.) 
Report of the Committee of the Privy Council for Scientific and Industrial 
Research for the Year 1918-19. 8vo. London, 1919. ( Presented by 
the Secretary.) 
Richardson (Lewis F.). Mathematical Psychology of War. 4to. Oxford, 
1919. ( Presented by the Author.) 
Roberts (Emmanuel). Native Remedies used in Snake Bites, etc. 8vo. 
Colombo, 1919. ( Presented .) 
Ventosa (Vicente). Reflexiones acerca de la Resolucion de las Ecuaciones 
Algebricas Numericas por el Metodo de Grafie. 2 pts. 8vo. Madrid, 
1917, 1919. ( Presented by the Author.) 
Very (Frank W.). What Becomes of the Light of the Stars ? (Reprinted 
from the Popular Science Monthly, March 1913.) 
The Luminiferous Ether. I. Its Relation to the Electron and to a 
Universal Interstellar Medium. II. Its Relation to the Atom. 8vo. 
Boston, 1919. ( Presented .) 
Vialay (Alfred). Essai sur la Genese et l’Evolution des Roches. Com- 
plements. 8vo. Paris, 1918. ( Presented by the Author.) 
Wells (John Edwin). First Supplement to a Manual of the Writings in 
Middle English, 1050-1400. Published under the Auspices of the 
Connecticut Academy of Arts and Sciences. 8vo. New Haven, 1919. 
{Presented.) 
Williamson (H. Chas.). On the Transport of Herring Spawn to the Southern 
Hemisphere. (From The Annals of Applied Biology, vol. v, No. 2, 
October 1918.) {Presented by the Author.) 
