x INTRODUCTION. 
Morgan, C. L.: 
Animal Sketches. Illustrated. 
Neepuam, James G.: 
Outdoor Studies. Illustrated. 
Neurwine, Henry: 
Native Birds of Song and Beauty. Illustrated, two 
volumes. 
Oswa.p, Feurx L.: 
Zodlogical Sketches. Illustrated. 
Pacxarp, A. S.: 
A Guide to the Study of Insects. Illustrated. 
ParkuurstT, H. E,: 
The Birds’ Calendar. Illustrated. 
Porter, J. HamMppEn: 
Wild Beasts. Illustrated. 
Russ, Kar: 
The Speaking Parrots. Illustrated. 
ScuppER, SamuEt H.: 
The Life of a Butterfly. Illustrated. 
Butterflies: Structure, Changes, and Life-histories. 
Semper, Frank W.: 
Injurious Insects, and Use of Insecticides. Illustrated. 
SHaver, NaTHANIEL S. : 
Domesticated Animals. Illustrated. 
Srmmonps, P. L.: 
Commercial Products of the Sea. Illustrated. 
Sroxss, A. C.: 
Microscope for Beginners, 
Tuomson, WILLIAM: 
Great Cats I Have Known. Illustrated. 
Tuompson, ERNEST SETON: 
Wild Animals I Have Known. Illustrated. 
Torrey, BRADFORD: 
Birds in the Bush. 
Wattacre, ALFRED RUSSELL: 
Darwinism. Illustrated. 
Weep, CLARENCE Moore: 
Life-histories of American Insects. Illustrated. 
