IQII 



BETTER FRUIT 



Page 65 



The Richardson Orchard Heater is the best and only 

 up-to-date device for the burning of oil, and that gives the 

 greatest amount of heat and smoke for the protection 

 against f-rost damage or freezing temperatures of Apple 

 and Peach orchards, Orange, Grape Fruit and Lemon 

 groves, Vineyards, Berry patches and Truck gardens. 



The Richardson Orchard Heater's Oil Reservoir is pro- 

 vided with cover and heavy metallic handles, and its oil 

 capacity of 36 quarts, in most localities, is sufficient for 

 a season's supply. They are made to nest, so as to store 

 easily. 



After filling reservoir with oil, there is no depreciation 

 in the quality or character of the oil. The oil that may 

 not be used after a season's frost fighting, can be gathered 

 and taken to storage tanks. 



The Richardson Orchard Heater's Brass Valve (speci- 

 ally made), the pipe connections, torch burner and fittings 



are standard 



THE RICHARDSON 

 ORCHARD HEATER 



strength and best 

 quality. ' "~r 



The Perforated 

 Burner, construct- 

 ed on scientific principles, where the oil is consumed, and the heat and smoke liber- 

 ated, is one of the important features of the Richardson type. With the large reservoir 

 and valve connection between perforated burner, a small, medium or large flame can 

 be controlled according to weather conditions. 



DRAPER OIL BURNER 



The Draper Oil Burner is superior to all Frost Prevention Heaters that burn 

 oil in the receptacle. 



The "Draper" Seamless Oil Container, made of heavy iron, holds 18 quarts 

 of oil; its capacity large enough to carry an oil supply without refilling, through 

 any long period of freezing weather. 



The "Draper" has a sliding cover, that, with the draft chamber on hinges, 

 regulates the fire and consumption of oil, according to the temperature to be 

 controlled. 



Manufactured by 



Richardson Frost Prevention Co. l^tsTo^Jkr" 



ORCHARDIST 

 SUPPLY HOUSE 



FRANZ 

 HARDWARE CO. 



Hood River, Oregon 



APPLE AND GRAPE BOOKLETS 



Telling how the $5.00 a box Apples and 

 Sweepstakes Winner Grapes are grown 

 in the most beautiful orchard valley in 

 the world; both booklets sent by mail on 

 receipt of 10c, stamps or silver. Address 

 Secretary Improvement Co., Clarkston, 

 Washington. 



SPRAYING TREES WITH 



BY ELLERSLIE E. LUTHER, 



THE use of arsenate of lead has its 

 advantages and disadvantages. It 

 is a very smooth paste, mixes well, 

 when not too dry, with water. It is 

 readily held in suspension in water in the 

 agitating tank; a safe poison, but it has 

 a great disadvantage. Neutral lead is 

 slow in killing, although insects quit 

 feeding almost immediately after eating 

 of it. The acid arsenate of lead, as sold 

 throughout the Northwest and in the 

 dry and arid sections, causes a skin 

 trouble on the apple which has- been of 

 concern to the cold storage man. 



In Mr. W. H. Volck's and my investi- 

 gations in the Pajaro Valley with arsen- 



ZINC ARSENATE OF LEAD 



WATSONVILLE, CALIFORNIA 



icals we found that only one other com- 

 mon insecticide could be used with safety 

 on plants of those we tested, and these 

 numbered many hundreds. This is arsen- 

 ite of zinc. It is a light, flufify powder, 

 readily goes into suspension, has a great 

 covering power and requires little or no 

 agitation. 



This material is very soluble in the 

 stomach acids of the insects, killing 

 insects such as the diabrotica and the 

 California tussock moth, most resistant 

 to arsenicals, with ease, but, unlike paris 

 green, it is extremely insoluble in water, 

 and the immunity from injury to plants 

 is remarkable. On apples it has been 



Paste for Labeling 



"PALO ALTO" PASTE POWDER 



added to cold water, instantly makes 

 a beautiful smooth, white paste. 

 Ready for immediate use at a cost 

 of ten cents a gallon. No labor. 

 No muss, No spoiled paste. 



Paste Specialists 



Robinson Chemical Works 



349-351 Eighth Street 

 San Francisco, California 



SLOCOM'S 



BOOK STORE 



Office Supplies 

 Stationery 



Ledgers, Journals, Time Books 

 Memorandum Books 

 Rubber Stamps 



Souvenir Postals Picture Frames 



IF YOU WANT TO KNOW ABOUT 



OREGON 



SUBSCRIBE FOR 



The Chamber of Commerce Bulletin 



The largest commercial magazine in the West 



Devoted to upbuilding Oregon and 

 the Pacific Northwest 



SUBSCRIBE NOW, $1.50 PER YEAR 



ADDRESS 



The Chamber ol Commerce Bulletin 



David N. Mosessohn, Publisher 

 Suite 616 Chamber of Commerce Building 

 Portland, Oregon 



WHEN WRITING ADVERTISERS MENTION BETTER FRUIT 



