Ward's Natural Science Establishment 



ROCHESTER, NEW YORK 



Relief Maps 



This map, 29" X46", scale 32 miles to the inch, with a vertical exaggeration of 20 to i, costs 

 only $30.00. The same map, hand colored to show the geology as given in United States 

 Geological Survey professional paper No. 71, is $1 25.00. Write for circular G-233 describing oiu: 

 relief maps. 



Fossils 



We are better prepared than ever before to furnish index fossils and exhibition material. A few 

 of our recent acquisitions follow: 



Cambrian material collected by Dr. Wolcot in British Columbia. 



Rare Ordovician material from New York and Bohemia, such as Aeglina, Proetus, Cryptolithus, 

 Illaenus, Cystids, etc. 



Rare Silurian forms from Bohemia such as Ascoceras and Ophidioceras, Cromus, Acidaspis, etc. 



Rare Devonian material from Germany such as Harpes, Cerarges, Goniatites showing sutures, 

 Hexacrinus, Cupressocrinus, etc. 



Fine Solenhofen fish, crustaceans and insects, 



Comanchic material from Texas, 



Eocene leaves from Texas and Louisiana, 



Insects in amber. 



Rock Sections 



We have designed and had made a machine for the preparation of microscopic slides of rock 

 sections, and believe we can fill your requirements quickly and in a satisfactory manna r. Let 

 us send you our special announcement circular. 



WARD'S NATURAL SCIENCE ESTABLISHMENT 



ROCHESTER NEW YORK 



