Publications of Carnegie Institution of Washington 15 



198. Morse, H. N. The Osmotic Pressure of Aqueous Solutions : Report on Investi- 



gations made in the Chemical Laboratory of the Johns Hopkins University 

 during the years 1899-1913. Octavo, 222 pages, 5 plates, 49 text figs. $2.00 



199. Shrove, Forrest. A Montane Rain-forest: A Contribution to the Physiological 



Plant Geography of Jamaica. Octavo, 110 pages, 29 pi., 18 figs. . $1.50 



200. Rivers, W. H. R., A. E. Jenks, and S. G. Morley. Reports upon the Pres- 



ent Condition and Future Needs of the Science of Anthropology. Quarto, 

 91 pages, 14 plates ...... . $2.00 



201. Benedict, F. G., and Fritz B. Talbot. The Gaseous Metabolism of Infants 



with Special Reference to its Relation to Pulse-rate and Muscular Activity. 

 Octavo, 168 pages, 65 figures , . . . . $1.50 



202. Cooper, Lane. A Concordance to the Works of Horace. Octavo, x+593 



pages $7.00 



203. Benedict, Francis G. A Study of Prolonged Fasting. Octavo, 416 pages, 



5 plates, 47 figures . . , . $4.00 



Livingston, B. E., and L. A. Hawkins. The Water Relation 

 between Plant and Soil. Octavo, pp. 1-48, 3 figures. 



$0.75 



204. 



Pulling, H. E., and B. E. Livingston. The Water-Supplying 

 Power of the Soil as Indicated by Osmometers. Octavo, 

 pages 49-84, 2 figures. 



205. Detlefsen, J. A. (with prefatory note by W. E. Castle). Genetic 



Studies on a Cavy Species Cross. (Paper No. 23, Station for Experimental 

 Evolution.) Octavo, 134 pages, 10 plates, 2 text figures . . . $2.00 



206. Johnson, Duncan S., and Harlan H. York. The Relation of Plants to Tide 



Levels: A Study of Factors affecting the Distribution of Marine Plants. 

 Octavo, 162 pages, 24 plates, 5 figs $2.50 



207. Case, E. C. The Permo-Carboniferous Red Beds of North America and 



their Vertebrate Fauna. Quarto, 176 pages, 24 plates, 50 figs. . . $4.00 



208. Broughton, L. N., M. R. Thayer, and others. A Concordance to the Poems 



of Keats. Quarto, xxi-(-437 pages, 1 plate $7.00 



209. Richards, Herbert M. Acidity and Gas Interchange in Cacti. Octavo, 107 



pages, 6 text figures ... $1.00 



210. (See Nos. 60, 80, 110, 130, 160, 170, 180, 190, 230.) Jones, Harry C., and COL- 



LABORATORS. The Absorption Spectra of Solutions as Studied by Means of 

 the Radiomicrometer. The Conductivities, Dissociations, and Viscosities of 

 Solutions of Electrolytes in Aqueous, Non-Aqueous, and Mixed Solvents. 

 Octavo, 202 pages, 1 "plate, 58 text figures $1.75 



211. Papers from the Department of Marine Biology of the Carnegie Institution 



of Washington. Vol. VII. Octavo, 128 pages, 9 plates, 19 figs. . $1.50 



This book contains the following papers, not sold separately: 



WATSON, J. B., and K. S. LASHLEY. Homing and Related Activities of Birds. 75 



pages, 7 plates, 7 figs. 



WATSON, J. B. Studies on the Spectral Sensitivity of Birds. 19 pages, a figs. 

 LASHLEY, K. S. The Acquisition of Skill in Archery. 14 pages, 2 plates, 9 figs. 



212. Papers from the Department of Marine Biology of the Carnegie Institution 



of Washington. Vol. VIII. Octavo, 261 pages, 23 plates, 73 figs. . $3.50 

 This book contains the following papers, not sold separately: 



POTTS, F. A. On the Rhizocephalan Genus Thompsonia and its Relation to the 



Evolution of the Group. 32 pages, 2 plates, 12 figs. 

 POTTS, F. A. Hapalocarcinus, The Gall-forming Crab, with some Notes on the 



Related Genus Cryptochirits. 37 pages, 3 plates, 19 figs. 

 POTTS, F. A. The Fauna Associated with the Crinoids of a Tropical Coral Reef, 



with Especial Reference to its Colour Variations. 26 pages, i plate, 7 figs. 

 CLARK, HUBERT LYMAN. The Comatulids of Torres Strait, with Special Reference 



to Their Habits and Reactions. 29 pages. 



MEDES, GRACE. The Pluteus of Laganum sp. 16 pages, 22 figs. 

 HARVEY, E. NEWTON. The Permeability of Cells for Acids. 14 pages. 

 MAYER, ALFRED G. Medusae of the Philippines and of Torres Straits. 46 pages, 3 



plates, 7 figs. 

 BARTSCH, PAUL. Report on the Bahama Cerions planted on the Florida Keyi. 10 



pages, 8 plates. 

 DAHLGREN, ULRIC. The Structure and Polarity of the Electric Motor Nerve-cell 



in Torpedoes. 44 pages, 6 plates, 6 figs. 



