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COMSTOCK PUBLISHING CO., Ithaca, N. Y. 



Reptiles, Amphibians 

 and Fishes 



W. F. H. ROSENBERG, 

 57, Haverstock Hill, London, N. W.. 

 England 



begs to announce the publication of a new Price List 

 (No. 15) of Reptiles, Batrachians and Fisbes contain- 

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 Catalogue is conveniently arranged for reference? 

 vrith authors' names and indications of localities. It 

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 following lists : 



No. 11, Birds' Skins, (5,000 species) ; No. 12, Le- 

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University of Colorado 



I Mountain Laboratory 



i Fourth summer session June 24 to Au- 

 gust 2, 1912. Courses in Field Biology 

 j (animal and plant), Ecology, Systematic 

 | Botany, Biology of Ponds and Streams, 

 j Suitable work for undergraduates and grad- 

 j nates. Daily Field excursions. 

 | The laboratory is at Tolland, Colo., in 

 | the Rocky Mountains at an altitude of 

 ! 8,889 feet. Climate cool and healthful, 

 j Fees and expenses moderate. 

 ! For pamphlet address the professor in 

 | charge 



Dr. Francis Ramaley 



University of Colorado 

 \ BOULDER COLORADO 



