INDEX OF AUTHORS. 279 



Perez, Luis M., 83. Materials for American History in Cuban Archives. 



Perkins, Henry F., 102. Notes on Medusae of the Western Atlantic. 



, report upon Investigations at Tortugas Station. Y. B. 4. 



Perkins, Janet, studies on the Philippine Flora. Y. B. 2. 



Perrine, Charles D., 119. Determination of the Solar Parallax from Photographs of 

 Eros. 



Peters, C. H. F., 43. Heliographic Positions of Sun-spots. 



Phillips, J. C, 144. On Germinal Transplantation in Vertebrates. 



Phillips, Ulrich B., concerning Plantation System in the Ante-bellum South. Y. B. 4. 



Pickering, Edward C., concerning Research in Astronomy. Y. B. i. 



, study of Astronomical Photographs. Y. B. 2. 



, on Methods for Promoting Research in the Exact Sciences. Y. B. 3. 



PiNCHOT, GiFFORD, concerning Research in Botany. Y. B. i. 



PiRSSON, Louis V., concerning Geophysical Investigations. Y. B. 2. 



Porter, James P., concerning Certain Psychological Investigations. Y. B. 6. 



Pratt, H. S., 133. Monocotyle floridana, a new monogenetic Trematode. 



, Trematodes and Cestodes of Tortugas. Y. B. 8, 9. 



PuMPELLY, Raphael, 26. Explorations in Turkestan. 



, 73. Explorations in Turkestan. 



, concerning Archeological and Physico-geographical Reconnaissance in Tur- 

 kestan. Y. B. 2. 



, concerning Trans-Caspian Archeological Expedition. Y. B. 2, 3, 4, 5. 



Pumpelly, R. W., 26. Explorations in Turkestan. 



, 73. Explorations in Turkestan. 



Putnam, Herbert, report concerning Bibliography. Y. B. i 



, report on Handbook of Learned Societies. Y. B. 2, 3, 4. 



Ramsey, E. E., 104. Brain of Amblyopsis. 



RaylEigh, Lord, concerning Methods for Promoting Research in the Exact Sciences. 

 Y. B. 3. 



Reed, William M., Observation of Variable Stars. Y. B. 2, 3. 



ReichERT, Edward T., 116. Differentiation and Specificity of Corresponding Proteins 

 and other Vital Substances in relation to Biological Classification and Or- 

 ganic Evolution. The Crystallography of Hemoglobins. 



, investigations concerning Crystallography of Hemoglobins. Y. B. 2, 3, 4, 6, 7, 8. 



, concerning Differentiation and Specificity of Homologous Vital Substances. 



Y. B. 9, 10. 



Reid, Harry Fielding. 87. Collaborator in Report on California Earthquake. 



, 87. (California Earthquake, Vol. 2.) The Mechanics of the Earthquake. 



Reighard, Jacob, 103. An Experimental Field-study of Warning Coloration in Coral- 

 reef Fishes. 



, concerning Warning Coloration in Reef-fishes. Y. B. 4. 



, concerning Color Discrimination, Association, and Memory in the Gray Snap- 

 per, etc. Y. B. 6. 



ReinkE, E. E., report on the Dimorphic Spermatozoa of Marine Prosobranchs, Y. B. 10. 



RemsEn, Ira, concerning Research in Chemistry. Y. B. i. 



Ricco, A., concerning Solar Observatory. Y. B. 2. 



Richards, Theodore W., 7. Method for Determining Compressibility. 



, 38. Atomic Weights of Sodium and Chlorine. 



, 56. Energy Changes involved in the Dilution of Zinc and Cadmium Amal- 

 gams. 



, 61. Electromotive Force of Iron under Varying Conditions. 



, di). Atomic Weights of Potassium, Silver, Chlorine, etc. 



, 76. Compressibilities of the Elements, and their Periodic Relations. 



, 118. Electrochemical Investigation of Liquid Amalgams of Thallium, Indium, 



Tin, Zinc, Cadmium, Lead, Copper, Lithium. 



, 125. Determinations of Atomic Weights. 



, concerning Research in Chemistry. Y. B. i. 



, investigation of Values of Atomic Weights. Y. B. 2, 3, 4, 5, 6, 7, 8, 9. 



RiTTER, W. E., 87. Concerning Biological Reconnaissance of Bodega Bay. 



, 87. Collaborator in Report on California Earthquake. 



Robertson, James A., 124. List of Documents in Spanish Archives relating to the 

 History of the United States, which have been Printed or of which Tran- 

 scripts are Preserved in American Libraries. 



Rogers, F. J., 87. Collaborator in Report on California Earthquake. 



Ross, Frank E., 72. Inequalities in Motion of the Moon. 



RouiLLER, C. A., 80. Conductivity and Viscosity in Mixed Solvents. 



