NATURE STUDY IN SCHOOLS. 



.57 



Nature Study Collections. 



For thirty-seven years we have been preparing Systematic 

 Collections illustrating the various branches of Natural History 

 and have brought their selection as near perfection as possible. 



MINERALS are represented by thirteen collections varying in price 

 from $5. to $50. and others in the hundreds. 

 ROCKS by nine collections, varying from 

 FOSSILS by collections 



INVERTEBRATE ANIMALS 

 VERTEBRATE ANIMALS 



We also have Human Skeletons, Anatomical 



$1. to $50. 

 $20. to $50, 

 820. to $50. 

 $30. to $60. 



Models, Biological 

 Supplies, Minerals for physical and chemical examination, and indi- 

 vidual specimens in all departments. 



Write for lists, stating your particular needs. 



Ward's Natural Science Establishment, 



28 to 40 COLLEGE AVENUE, 



ROCHESTER, N. Y. 



L. E. KNOTT APPARATUS GO. 



16 Ashburton Place, Boston, Mass. 



Microscopic, Chemical and Physical Apparatus. 

 Photometers and Chemicals 



BOTANICAL COLLECTING BOXES 



PLANT PRESSES, 



Drying and Mounting Papers. 



fyNew Catalogue Free. 

 Everything Useful To Botanists. 



CAMBRIDGE BOTANICAL 



SUPPLY COMPANY. 



1286 Massachusetts Ave., opposite 

 College Library, Cambridge, Mass. 



Teacher, Look at This, Teacher! 



20 Large Specimens all labeled, 35 cts. 



Coral, Chalk, Onyx, Calcite, Gypsum, Halite, Feldspar, 

 Quartz, Museovite, Phlogopite, Flint, Talc, Serpentine, 

 Limonite, Magnetite, Hornblend Schist, Granite Horn- 

 blendic, Red Granite, Pudding Stone, Sandstone. 

 20 Of a kind, 1 1-2 by 1 1-2 inches, 30 cts. 



170 Tremont St. Boston, Mass. 1ST. I_j . ~W T T iPSDIST^ 



