ELECTRICAL EDUCATION 



"ELECTRIC LIGHT HOME." 



Teaches Electricity Complete and Illustrated. Price, 10c. Postpaid. 



A little book, butit contains explicit instructions which TEACH YOU HOW to make 

 a Chemical Battery Installation at a very little outlay, so that you can have BklLLIANT 

 electric light in >our residences for .ill purposes WITHOUT MACHINERY. 



The book is thorough, in lew words, and illustrated with practical diagrams, formulas, 

 etc , being written understanding^ for everybody. 



IT TEACHES ELECTR1CITV IN PLAIN LANGUAGE. 



A New York minister states that he lectured on electricity through knowledge obtained 

 from this book. 



A reader (a U. S. Array Engineer) writes that this book TAUGHT HIM rao-e about 

 ELECTRICITY than his entire library of electiical books. 



Testimonials of the highest character from thousands ot men and wome in all capaci- 

 ties of life. The writer of -Electric Light Home" has rtceived SEYEN AWARDS 

 for his many inventions. 



I supply Strong Electric Motors for $1 and up. Money refunded if not satisfactory. 

 Electric Lamps, I to O candle power, 40 cents each. :: :: :: :, :: :: :: 



BUSINESS ESTABLISHED 1886 



ADDRESS 



JAS H. MASON (Inventor), 



Dept. P. S. Telephone, 4036 John. 150 Nassau St., N. Y. 



THE POWERS THAT PREY 



CRiniNAL AND POLICE STORIES 



BY 



JOSI A H FLYNT 



and 



FRANCIS WALTON 



CLOTH, !2mo. $1.25 



"A book of unusual interest . . . firsthand 

 studies, in short story form, of the criminal re- 

 garded, not as a case, but as a man ... a book 

 before the intense actuality of which mere literary 

 work seems somehow insignificant. "- 



Neu> York Evening Post. 



AT ALL BOOKSTORES 



MICROSCOPES 



AT DUTY FREE PRICES. 

 We are offering the 



New Continental Microscope 



made by R. & J. Beck, 

 of] ondon, at the lowest rates ever offered to 

 Edu.ational Institutions. Thus saving thirty- 

 five to forty percent, from American prices. 



SPECIAL PRICES ON BOTANICAL 



SUPPLIES. 

 The new pocket Aplanat, $i.oo to J1.50 less 

 thirty-three-and-a-third per cent. Botanical 

 1 ollei ting cases, 75c. to J1.50. Plant Presses. 



f to J1.50. Botanical mounting papers and 



entomological pins at special rates. 



SEND FOR CATALOGUE AND SPECIAL 

 PRICES. 



Williams, Brown & Farle 



uept. N. Philadelphia, Pa. 



Water Every Day j n ne Year 



Whether the wind blows or not, is furnished by the Rider and Ericsson 

 Hot Air Pumps, nearly 20,000 of which are in daily use. Especially valuable 

 for country residences and other places where a constant supply of water 

 is necessary, and where absolute safety is also a consideration. A record of 

 23 vears is reassuring. Apply to neareststore for catalogue "B. 4." 



RIDER-ERICSSON ENGINE CO. 



22 Cortlandt St., New York 

 249 Franklin St , Boston 

 22A Pitt St., Sydney, N. P. W. 

 Teniente-Rey 71, Havana 



86 Lake St., Chicago . 



40 N. 7th St., Philadelphia 

 692 Craig St., Montreal, P. Q. 

 Merchant and Alakea Sts., Honolulu 



