AA BL4GI- Moar. ap 
CONTENTS OF VOLUME XII. 
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Volume XII, Number 1 
Chamberlain, Ralph V. 
New California Spiders, 1. 
Centipedes and Millepedes 
Near Claremont, 24. 
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Spiders from Claremont-Laguna Re- 
gion, 25. 
Hilton, William A. 
Central Nervous System of My- 
tilus Californianus, 27. 
Chamberlain, Ralph V. 
Notes on the Sipunculida of La- 
guna Beach, 30. 
Volume XII, Number 2 
Munz, Philip A. 
A Study of the Food Habits of 
the Ithacan Species of Anura 
During Transformation, 33. 
Hilton, William A. 
The Central Nervous System of 
Three Bivalves, 57 
Volume XII, Number 3 
Cowles, Raymond B. 
A List and Some Notes on the 
Lizards and Snakes Represented 
in the Pomona College Museum, 
63. 
Jtilton, William A. 
The Central Nervous System of 
an Unknown Species of Marine 
Leech, 67. 
Campbell, Arthur S. 
Central Nervous System of a Cen- 
pede, 69. 
Corwin, Genevieve 
Microscopic Studies of the Water 
of the Claremont-Laguna Re- 
gion, 72. 
Case, Susie 
General Reactions of a Centi- 
pede, 79. 
Hilton, William A. 
Notes on the Central Nervous 
System of a Free-Liviing Ma- 
rine Nematode, 82. 
Volume XII, Number 4 
Alexander, Charles P. 
New Species of Crane-Flies from 
the United States and Canada, 
85. 
Hilton, W. A. 
Notes on Pacific Coast 
gonids, 93. 
Caldwell, J.; Durant, W. 
Uca Musica, 94. 
Caldwell, J. 
Lepidopia Myops, 95. 
Pycyno- 
Lorbeer, Howard 
Eremita Analoga, 96. 
Hilton, William A. 
The Nervous System and Sense 
Organs, I, JL and IID, 1 to: Tt 
