CONTENTS OF VOL. VIII. 



No. i. DECEMBER, 1904. 



PAGE. 



W. J. BAUMGARTNER : Some New Evidences far the Individuality 



of the Chromosomes i 



WILLIAM MORTON WHEELER : The Phytogeny of the Termites 29 ^ 



J. F. McCLENDON : On the Anatomy and Embryology of the 



Nervous System of the Scorpion 38 



THOS. H. MONTGOMERY, JR.: A List of the Types of Fossil 



Vertebrates in the Museum of the University of Texas 56 



No. 2. JANUARY, 1905. 



CARL H. EIGENMANN : Divergence and Convergence in Fishes 59 



B. F. KINGSBURY : The Rank of Necturus Among Tailed Batra- 



chia 67 



WILLIAM MORTON WHEELER : A New Myzostoma, Parasitic in a 



Starfish 75 



WALTER E. GARREY : A Sight Reflex Shown by Sticklebacks 79 



A. J. CARLSON: The Physiology of Locomotion in Gasteropods 85 



C. M. CHILD : Form- Regulation in Cerianthus, VIII. Supple- 



mentary Partial Discs and Heteromorphic Tentacles 93 - 



No. 3. FEBRUARY, 1905. 



A. J. CARLSON: Comparative Physiology of the Invertebrate Heart. 123 



LOUISE B. WALLACE : The Spermatogenesis of the Spider 169 ^ 



MARGARET REED : The Formation of the Interior Cells in the Seg- 

 mentation of the Frog' s Egg. 189 



RALPH S. LILLIE : On the Conditions Determining the Disposition 



of the Chromatic Filaments and Chromosomes in Mitosis ... 193 



No. 4. MARCH, 1905. 



EDWIN G. CONKLIN : Organ-Farming Substances in the Eggs of 



Ascidians 205 



Research Seminar of the Marine Biological Laboratory 231 



WALTER E. GARREY : The Osmotic Pressure of Sea Water and of 



the Blood of Marine Animals 257 



iii 



