248 Journal of Applied Microscopy. 



native types should be shown and students encouraged to collect and classify 

 them.) 5. The Hymenoptera ; their structure, classification and habits. 



Papers Read at the Meeting of the Affiliated Scientific Societies, 



December, 1898. 



AMERICAN MORPHOLOGICAL SOCIETY. 



W. Patten : Gaskell's Theory of the Origin of Vertebrates from Crustaceans. 

 Bashford Dean : Notes on Myxinoid Development. 



F. B. Sumner : Notes on the Early Development of the Cat-fish. 



J. Reighard : On the Development of the Adhesive Organ of Amia. 



W. E. Ritter : On the Reproductive Habits and Development of the Californian Land Sala- 

 mander, Autodax (presented by G. H. Parker). 



C. H. MiNOT: I. Notes on Mammalian Embryology. 



2. Professor O. van der Stricht's Researches on the Human Ovum, the Ner- 

 vous System of Amphioxus, and the Development of Thysanozoon 

 ( demonstrations. ) 



S. P. Gage : Notes on the Morphology of the Chick's Brain. 



W. A. LocY : Review of Recent Evidence on the Segmentation of the Primitive Vertebrate 

 Brain. 



C. J. Herrick : Metameric Value of the Sensory Components of the Cranial Nerves. 



W. A. LOCY: New Facts Regarding the Development of the Olfactory Nerve. 



N. R. Harrington and E. Leaming : Action of Different Colors upon Protoplasmic Flow of 

 Amoeba. 



C. H. Eigenmann : Further Observations on the Eyes of the Blind Fishes. 



U. Dahlgren : The Breathing Valves of Teleost Fishes. 



N. R. Harrington : Respiratory and Breathing Habits of Polypterus (demonstrations). 



G. H. Parker and F. K. Davis : The Coronary Vessels in Fishes. 



L. H. Snowden : Notes on the Origin of the Blood Vessels and Heart in the Chick. 



H. F. OsBORN : Vertebral Characters of the Herbivorous Dinosaurs, especially as shown in 

 Diplodocus. 



J. L. Wortman : The Evolution of the Cannon-bone in the Artiodactyla. 



J. S. Kingsley and W. H. Ruddick : The Ear Bones of the Mammalia. 



C. O. Whitman : The Evolution of the Color-pattern of Columba livia from that preserved in 

 C. affinis Blyth. 



H. C. BuMPUS: A Specific Case of the Elimination of the Unfit. 



A. E. Verrill: The Marine Fauna of Bermuda with Reference to its Fitness for a Zoologi- 

 cal Station (illustrated). 



G. W. Field: The Anatomy of the Spermatozoon of Invertebrates (demonstrations). 



J. H. McGregor : The Middle-piece of the Urodele Spermatozoon. 



H. E. Crampton, Jr.: The Origin of the Yolk in the Egg of Molgula. 



E. G. CoNKLiN : Protoplasmic Movement as a Factor of Differentiation. 

 S. Watase : The Characteristics of Mitosis and Amitosis. 



F. H. Herrick : i. A Case of Egg within Egg. 



2. Abdominal Pregnancy with Histolysis of Foetus. 

 W. R. Coe : The Early Development of Cerebratulus. 

 C. B. Wilson : Regeneration and Fission in Cerebratulus. 

 H. S. Pratt : The Morphological and Physiological Significance of the Cuticula of 



Trematodes. 

 M. L. Nickerson : Epidermal Glands in Phascolosoma (presented by T. H. Montgomery, Jr.). 

 A. G. Mayer : An Atlantic Palolo-worm. 



W. S. Nickerson : Notes on Loxosoma Davenporti (demonstrations). 

 H. S. Jennings: On the Laws of Chemotaxis in Paramecium. 

 C. B. Davenport: Phototaxis of Daphnia. 



