viii The American Naturalist. [Vol. XXXI, 
_Gall-Louse, 548; Hemiptera, 549, 633 ; Coleoptera, 550; Dip- 
ective Value of Motion, 814 ; Ambrosia Beetles, 816; Brown- 
Tailed Moth, 817; Scudder’s Guide to the Orthoptera............+ 
LEmbryology.—Movements of Blastomeres, 83 ; Mechanical Explanation 
Cell Division, 84 ; Corpus Luteum, 167; Cleavagein Ovarian 
Eggs, 169; Spinning Powers of Eggs, 243; Two Animals from 
One Egg, 452; Do the Astral Rays Pull or Push? 453 ; Contin- 
uity of Cells in Eggs, 454; Breeding Habits of the Spotted Sal- 
amander, 635 ; Cell Division and Nuclear Division, 637; Visual 
Complexity of Protoplasm in Certain Eggs, 639; Some Activi- 
ties of Living Eggs, 730; Spinning in Serpula Eggs, 818; Fer- 
tilization 
Physiology.—Venom of the Australian Black Snake 
Psychology.—Reinversion of Retinal Image, 86 ; Bird’s Nests and In- 
stinct, 89; Psychic Evolution, 91 ; Ashncicain Psychological 
Association, 169; Psychology in 1896, 248; Studies in Tele- 
ene Language, 252; Inheritance of Subserviency, 253; 
eams, 354; Courtship of Grasshoppers, 357; Notes on Child 
Pook, 455; Effects of Music on Caged Animals, 460; Mr. 
Spencer’s Psychology, 553; Involuntary Movements, 557; Con- 
traction of the Field of Vision, 558; Rapid Calculators, 642; 
Visual Perception of Depth, 644; Physiological Effects of Men- 
tal Work, 732; The Tactual Threshold for the Perception of 
Two Points, 820; L’Année Biologique, 823; Notes on the Ex- 
perimental Study of Memory, kee Odor-mixture, 987; Psy- 
chology at the British Association, 988: Physical Basis of Pain, 
end mag s Social and Ethical Tucerpretofions in Mental 
DEVEDE sis cnenetoncneraesy secon T 
Anthropology.—The PUETA Cross, 255; Maler’s Exploration in o- 
_ tan, 258; Cave Hunting in Syria, 258; Pile Structures of Semi- 
nole Indians, 357; Grooved Stone Axe in South America, 359; 
_ Fossil Bird Bones from the Bone Caves of Tennessee, 645; 
Scapulæ of Indians of the Northwest Coast, 736; The Tomahawk 
of the North American Indian, 824; A Triple Indian Grave in 
Western New York, 826; The History of Mankind.................. 
Microscopy.—Formol, 92, 464, 46s; Preparation of Rotifers, 360; Angle 
of the Razor in Section Cutting, 464; Schaper’s Method of Re- 
pasen he 
a OF SCIENTIFIC SOCIETIES, 96, 174, 259, 361, 467, 559, 
fee eenes 
See NEWS, 97, 188, 267, 365, 478, 566, 657, 751, 828, 917, 990,.. 
1056 
245 
I060 
