xu 



CONTENTS 



B. Their Economic Value 



VII. Friends among the Birds as Destroyers of 



Insect Pests 63 



Bureau of Biological Survey — Methods of determin- 

 ing food of birds — Harm done by insects — Nature's 

 check on insects — Service performed by birds — 

 Amount of food eaten by birds — Value of nestling birds 

 — Control of insect outbreaks — Division of labor — 

 Birds of a Maryland farm — Birds and human health. 



VIII. Friends among the Birds as Destroyers of 



Weed Seeds 84 



Harm doncbi 

 For. %iss^ 



clarget. 



. 42nd St., N. Y. 18, Dept: 501-HT 



IX : 



' for the Spring Floods! 



t SUMP PUMPS 



Aristocrat automatic elec- 



imp Model Kl with non- 



;ller. is a submerged type 



.__ drainer, having a shaft 



A.d to a G.E. Vi horsepower. 



ieavy Duty 115 Volt A.C. 



mp unit has a capacity of 

 aer hour, free discharge, or 

 XT hour against a five foot 

 laller capacities up to a 

 ead. 

 VT! inches high, 11 inches wide. 



■^i-t moio-ht C9Q OSS 



COMBINATION 

 FAUCETS 



weight. 



Reg. $60... 



"OB Newark, 



N. J. 



fIDSON'S 



IMBING SUPPLY 



T AVE., NEWARK, N. J. 



Chrome Plated, 

 Brass, with 

 soap tray. Will 

 fit ony sink. 

 Standard size. 

 Value $9.75. 



OUR PRICE 



AUTOMATIC KILL-FYR 



EXTINGUISHERS 



Without human aid 



Protects 

 HOMES HOTELS 

 STORES - SHOPS 

 Thousands in Use' 

 FREE CIRCULAR 

 UENERAL MACHINE CO 

 'J33 Market St. .Camden, N.J 

 County &. State D istributors 

 Write Dept. 88 

 DISCOUNT IN QUANTITIES 



Brand New 



Grey Covert 



& Hickory Stripe 



Sizes 36 to 46 

 $6 Value for 



$^.95 



only 



P. P. 2Se pr. 



Send ter- Free Catalog 



U.S.N. Surplus 

 Bluet Denim 



DUM- 



I U. S. M. C. 



ICamou- 

 I flaqe 



PONCHO 



p. p. 



p. P 1 5c iK each. 



^ MAIL ORDERS PROnlPlLY FILLED 

 H Please Include Posiage With Order 

 g| Send Cash, Check or Money Order 



■ ■ ■ I S°rry, no C.O.D.'s 1 1 1 



