The Wcii American Scientist. 



SAMUEL CARSON & CO, 



The 



Bool^-Houge. 



Publishers, 



Booksellers, and 



Stationers. 



No. 208 Post Street, San Francisco. 



THE WESTERN EXCHANGE BUREAU. The Acme No. 3 Microscope, 



Books, Magazines, Indian Kelics, Minerals, Stamvv, 

 etc., boujfht, sold or exchanged. Send two-cent 

 stamp for a copy of the Mdiithly BnlU'tin. 

 Address 



THE EXCHANGE BUREAir, 



Orrville, Ohio. 



HOME TREATMENT FOR CONSUMP- 

 TION AND NERVOUS DEBILITY.- 



Medical aud Hygienic. Addriss with stiiiiip. 

 H. A. MUMAW, M. D., HomcBopatbi( 

 Phj'sician and Sngeon, Ourville, Ohio. 



-THE NAUTILUS- 



FOK CONCHOLOGISI S. 



(Formerly "The Conchologists' Exch.Tiige.") 



Improved! Enlarged! Illustrated! 



Jssui'ii montJdy. Subscri/>tio>i %\.ao /'er atiinmt 

 H. A. PiLSBEV, Editor, 

 Address VVM. I). AVERELL, Manager 



Mt. Airy, Philadelphia, Pa. 



BIRDS, SKINS AND JBGGS. 



-pfTEW PiilCE LIST OF FRESH SOUTHERN CAL- 

 -'-^ ifornia Bird Skins sent for stamp. Charles H. 

 Marsh, Dulzura, Oal. 



Our A, B, C's— Accuracy, Brevity, Comp'eteness. 



WEST AMERICAN SCIENTIST 



"Decidedhi the best of Us class.'" 



An ilhistrated monthly niajjazine of popnlar science — 

 the only one in the West. 



^l.OOayear; 10 cents a copy. 

 For shells, fossils, plants, bulbs, ferns, cacti, 

 seeds, etc., address the editor, Chas. Russell Ofcutt, 

 JSan JJieKO, California. 



FOR FINEST WORK: 



With 3-5 inch and 1-5 inch objectives, 2 eye- 

 pieces power 60 to 700), glass sl'cles and 

 covers, in case $ 83.00 



With same outfit, but with addition of the 

 1-15 oil immersion objective and substage 

 condenser (jiower 50 to 1000) 1,50.00 



The Acme 



No. 4 

 Microscope, 



As illustrated, a 

 thorough instrument 

 for professional or 

 educational use; 



Withl in.& 1-5 

 in. objectives, 

 two eyepieces 

 (power 40 to 

 600), glass 

 slides and cov- 

 ers in case. 155.00 



The Acme No. 5 Microscope, 



An instrument of simple but thorough construction, 

 with good lenses, and at a tninimuni cost: 

 With 1 inch and 1-5 inch objectives, 1 eye- 

 piece (power 40 to 360), in case .S28.00 



^g°Send for complete catalogue of Microscopes, sam- 

 ple copy of the Micnmciqiical II iillct in, and clearance 

 sale list. 



In the Acme Microscopes, we especially pride our- 

 selves on the accurate fi 1 1 iiuj aniX smooth u'ork'ng of 

 the focal adjustments, which are vital points in a 

 microscope. Our rack and pinion is imexcelled for 

 perfectt action. 



JAMES W. QUEEN & CO., 



Jlanutacturing Opticians, 

 924 Chestnut St., Philadelphia, Pa. 



