344 APPENDIX B 



Dealers in Collectors' Supplies and Laboratory Materials 



Ward's Natural Science Establishment, Rochester, N. Y. 



The Kny-Scheerer Co., New York. 



The Simplex Net Co., Ithaca, N. Y. 



Bausch & Lomb Optical Co., Rochester, N. Y. 



Spencer Lens Co., Buffalo, N. Y. 



Central Scientific Co., Chicago, 111. 



Southern Biological Supply Co., New Orleans, La. 



