BULLETIN OF THE LAHORATORIES 



DECEMBER. 



The Lumbar, the Sacral, and the Coccygeal Nerves in the Domestic Cat. 



With Plate XXIII. By T B. Stowell 286 



Weigert's Method of Staining the Medullary Sheaths 313 



The Development of the Cranial Nerves of Vertebrates. Part II. With 



Plate XXII. By C. von Kupfifer. Translated by Oliver S. Strong 315 



Contributions to the Morphology of the Brain of Bony Fishes. II. — 

 Studies on the Brains of some Fresh-water Fishes. Continued. 

 With Plates XXIV— XXV. By C. L. Herrick 333 



Editor's Announcement 358 



VOLUMF. II, 1892. 

 FEBRUARY. 



The Cerebrum and Olfactories of the Opossum, Didelphys virginica. 



By C. L. Herrick. With Plates I— III (A, B, C}.._ - I 



MAY. 



Contributions to the Morphology of the Brain of Bony Fishes. Part II. 



Studies on the Brain of Fresh-water Fishes (Continued ) By C. 



L. Herrick. With Plates IV— XII 21 



Recent Views with Reference to the Structure of the Nervous System. 



By Professor Heinrich Obersteiner. Translated by C. Judson 



Herrick 73 



Neurologists and Neurological Laboratories. Gustav Fritsch. With 



Portrait 84 



SEPTEMBER. 



The Central Nervous System of Protopterus annectens. By Karl Rudolf 

 Burckhardt, Assistant in the Laboratory of Anatomy in the Uni- 

 versity of Berlin. With Plate XIII 89 



On the Histological Structure of the Medulla of Petromyzon. By J. 



David, Ph.D. With Plate XIV 92 



Psychological Notes upon the Gallery Spider — Illustrations of Intelligent 

 Variation in the Construction of the Web. By Charles H. Tur- 

 ner, M.S., Assistant in the Biological Laboratory of the Univer- 

 sity of Cincinnati 95 



The Psychophysical Basis of Feelings. By C. L. Herrick iii 



Editorial. Instinctive Traits of Animals 115 



DECEMBER. 



Histology and Physiology of the Nervous Elements. By C. L. Herrick. 137 



Metamerism of the Vertebrate Head. (Abstract) 149 



Additional Psychological Note on the Gallery Spider. By C. H, Turner. 156 



Intelligence in Animals 157 



An illustration of the Taxonomic Application of Brain Measurements. 



By E G.Stanley 138 



Embryological Notes on the Brain of the Snake. By C. L. Herrick. 



With Plates XV— XIX 160 



DECEMBER, [Supplement]. 



The Neurasthenic Factor in the Development of Mental Diseases. By 

 A. B. Richardson, M D., Superintendent of the Columbus Asy- 

 lum for Insane 177 



