APPENDIX. 
J. Text AND REFERENCE BOOKS. 
The following illustrated works are the most generally useful: 
Bourne, Gilbert C. 1909. An Introduction to the Comparative Anatomy of 
Animals. Vol. I. George Bell and Sons, London. 
Ecker, A. 1889. Anatomy of the Frog. Translated by George Haslam. 
Clarendon Press, Oxford. 
Ecker und Wiedersheim. 1896-1904. Anatomie des Frosches, auf Grund 
eigener Untersuchungen durchaus neu bearbeitet von Dr. Ernst. Gaupp. 
Braunschweig, Friedrich Vieweg und Sohn. 
Gadow, Hans. i901. Amphibia and Reptiles. Vol. 8 of the Cambridge Nat- 
ural History. The Macmillan Co., New York. 
Holmes, S. J. 1907. The Biology of the Frog. The Macmillan Co., New 
York, 
Marshall, A. Milnes. 18096. The Frog: An Introduction to Anatomy, His- 
tology and Embryology. The Macmillan Co., New York. 
Mivart, St. George. 1881. The Common Frog. The Macmillan Co., New 
York. 
Il. PurRcHASE OF MATERIAL AND EQUIPMENT. 
Rana pipiens is the species of frog usually furnished by dealers, 
ctissetocnon leopard itog.. “Lhe larger 
the frogs the better, especially in case the arteries are to be in- 
under the name 
jected. A few large bullfrogs (Rana catesbiana) are valuable 
for permanent preparations, but the supply is uncertain. Material 
and teaching accessories may be obtained from the following 
sources : 
A. A. Sphung, North Judson, Indiana. (Live frogs.) 
E. R. Neuenfeldt, 225 North Clark St., Chicago. (Live frogs.) 
Supply Department, Marine Biological Laboratory, Woods Hole, Mass. (Pre- 
served frogs, including specimens with arteries injected.) 
18, 1D) Lambert, Tufts College, Mass. (Living and preserved frogs; arteries 
injected.) 
Brimley Bros., Raleigh, N. C. (Preserved frogs.) 
Ward’s Natural Science Establishment, Rochester, N. Y. (Preserved frogs; 
anatomical preparations and models.) 
Kny-Scheerer Co., 225 Fourth Ave., New York. (Preserved frogs; ana- 
tomical preparations and models; syringe for injecting arteries; dissecting 
instruments; charts.) : 
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