CONTENTS. 



PAGE. 



I. The Effects of Temperature upon Tropical Marine Animals. By A. G. 



Mayer 8 figs., 4 records 1-24 



II. The Relation between Degree of Concentration of the Electrolytes of Sea- 

 water and Rate of Nerve-Conduction in Cassiopea. By A. G. 

 Mayer 13 figs. 25-54 



III. The Law Governing the Loss of Weight in Starving Cassiopea. By A. G. 



Mayer i plate, 21 figs. 55-82 



IV. Changes in Salinity and their Effects upon the Regeneration of Cassiopea 



xamachana. By A. J. Goldfarb 4 figs. 83-94 



V. Regeneration in the Annelid Worm, Amphinoma pacifica, after Removal of 



the Central Nervous System. By A. J. Goldfarb 95-102 



VI. Experimentally Fused Larvse of Echinoderms with Special Reference to 



their Skeletons. By A. J. Goldfarb 15 figs. 103-121 



VII. Experiments on the Permeability of Cells. By J. F. McClendon. . .3 figs. 123-130 

 VIII. The Relation Between the Rate of Penetration of Marine Tissues by Alkali 

 and the Change in Functional Activity Induced by the Alkali. 



By E. Newton Harvey I fig. 131-146 



IX. Physiological Studies on Certain Protozoan Parasites of Diadema setosum. 



By Merkel H. Jacobs 147-157 



X. The Origin of the Electric Tissues of Gymnarchus niloticus. By Ulric Dahl- 



gren 9 plates, 9 text-figs. 159-194 



XI. The Development of the Apyrene Spermatozoa of Stromhus biluberculatus. 



By E. E. Reinke 7 plates 195-239 



XII. History of the Spotted Eagle Ray, Aetohatus narinari, with a Study of its 



External Structures. By E. W. Gudger 10 plates, 19 figs. 241-323 



