December 25, 1915 



HOETICULTURE 



865 



In greenhouse heating the water 

 temperature is assumed to be 150 de- 

 grees, and the coefficient of transmis- 

 sion 2. In the table the same boiler 

 with the same pipe is rated to heat 

 different amounts of glass to temper- 

 atures ranging from 40 to 45 degrees 

 up to 60 to 65 degrees. Or, in other 

 words, the same boiler is rated to pro- 

 duce or transmit through 120U ft. of 

 4" outside diameter greenhouse pipe 

 252,000 B. T. U. to a house requiring a 

 temperature of 40 to 45 degrees, or 

 204,000 B. T. U. to a greenhouse re- 

 quiring 60 to 65 degrees. A very ac- 

 commodating boiler indeed. 



The amounts of pipe catalogued are 

 correct for the temperatures named, 

 but as has been stated, the same 

 amount of radiation or piping may give 

 off different quantities of heat and the 

 boiler, or generator of units of heat, 

 must be large enough for the number 

 of units required, and not large enough 

 for the quantity of piping or radiation 

 merely. 



In regard to the chimney, the flue 

 should never be oblong if it is possible 

 to avoid such a shape. It should be 

 square at least, and a round flue is 

 best of all. The effective area of the 

 square is the same as that of a circle 

 inscribed in the square. The flue 

 should be smooth, and absolutely tight, 

 and the area should be ample to carry 

 away the products of combustion, 

 which are noxious gases. The height 

 of the chimney must be sufficient to 

 produce intensity of draft. Both vol- 

 ume of air and intensity of draft are 

 required for complete combustion. 

 Neither one is sufficient without the 

 other. Many boilers are condemned 

 when the only thing wrong is the 

 chimney, and the trouble is not always 

 apparent. When combustible is com- 

 pletely burned, there must be a hot 

 fire and an ample supply of oxygen. 

 The resultant gas is carbon dioxide 

 (CO 2) and nothing remains but ash. 

 When coal is incompletely burned be- 

 cause of lack of oxygen, it is converted 

 into carbon monoxide (CO), and noth- 

 ing remains but ash, the same as if 

 complete combustion had taken place. 

 In such cases much of the real value 

 of the fuel goes up the chimney un- 

 consumed, and is lost. 



Insufficient air. a low degree of heat 

 in the furnace, and poor mixing of air 

 and fuel, are responsible for enormous 

 wastes. One cannot determine merely 

 by looking at a fire whether or not 

 there is sufficient air or sufficient draft, 

 and one cannot decide from the ashes 

 afterward whether or not combustion 

 has been complete or incomplete. 



The catalog may be filled with In- 

 structions and directions, it may men- 

 tion precautions and don'ts ad libitum, 

 but much of the success or failure is 

 due to the quality of the fuel used and 

 the quality of the handling or method 

 of feeding that the boiler receives. 



The fireman is responsible to a large 

 degree for the satisfaction or dissatis- 

 faction given. A good quality of fuel 



USED BY FLORISTS OVER 30 YEARS 



NIKOTEEN 



For Sprayintf 



APHIS PUNK 



For Fumigating 



A»k Your Dealer For It. 



NICOTINE MPG. CO. 



ST. LOUIS 



f n>u>t_ pi4.*>*»^ 



PAN-PACIFIC PKEisS ASSOCIATION, LTD. 



October 16, 1915. 



San Francisco, Calif. 



Mr. Benjamin Haminond, Beacon, N. Y. 



„ rJ^,%'^\,^!,''\ 7^" "orticulture Jury, of which the writer was a member, awarded you- 

 fhi'f T„. , '?^ your Insecticides, and when you take Into consideration the fact that 



„^;i/ ^' "".'f''*' V-f ' *? "^f'ter. was composed of some of the famous experts of the 

 JI?nirt' 7rn^, V, f^" '"' tl'e importance of this award. Verification of this may be ob- 

 EiposltVon *^'^'""S« ^- Dennison, Chief of Horticulture, Panama-Pacific International 



H„roT5^Kr'"Jl*^, l^os been requested to furnish a list of the articles which the Jury en- 

 ri^^^fiJiL. ^ "^ r}-'°", '" »«•«■■<> "B Pf^es because of merit. This request comes fronx 

 representatives of foreign countries and states. >-""'co num 



Respectfully yours, 



Signed : J. A. BUCHANAN, Gen. Mgr. 



Pan-Paclflc Press Association. 



PANAMA-PACIFIC INTERNATIONAL EXPOSITION 



San Francisco, Calif. 



Division of Exhibits Office of the Chief 



DEPARTMENT OF HORTICULTURE 



Mr. Benjamin Hauimond, Beacon, N. Y. November 3, 1915. 



o ^**/<.m'''' ^.''f^I'l-^'os to your letter of October 2Sth, I wish to say that the Jury- 

 awarded Slug Shot. Grape Dust and Copper Solution a Gold Medal ' 



Yours very truly, 



Signed: G. A. DENNISON, 



Chief of Horticulture. 



Sold by the Supply Houses of America 



BENJA MIN HAMMOND, BEACON, N.Y. 



Where there Is a bouse that la Just 

 full of buds almost ready to show color, 

 nothing will turn better color into the 

 flowers than a little soot, that can be 

 scattered over the benches before water- 

 ing. The amount applied should not be 

 excessive, as the soot Is very strong 

 and may damage some of the foliage 

 somewhat. Apply Just enough to blacken 

 the surface of the soil in the benches, 

 and let It go at that. Better a little 

 oftener than too much all at once. 



We olTer the genuine In orlgliud cwt. 

 Sarks, at: 



«4.00 per IK lbs.; «17.M per MO Iks. 



Stumpp & Walter Go. 



30-32 BarcUy Street, NEW YORK 



BKflNb^ 

 HflNURES 



Unequalled for Greenhouse and 

 Landscape Fertilizing 



THE PULVERIZED MANURE CO. 



31 Union Stock Yards, Chicago 





The Recognized Standard Insecticide. 



A spray remedy for green, black, white fly, 

 tbrlps and soft scale. 



Quart, tl.OO; Gallon. (12.50. 



FUNCIME 



An Infallible spray remedy for rose mildew,. 

 carnation and chrysanthemum rust. 

 Quart, 7Sc. ; Gallon, f2.00. 



VERMINE 



A soil sterilizer for cut, eel, wire and.' 

 angle worms. 



liuart. tt.OO: Gallon, $3.00. 



SCALINE 



For San Jose and various scale on treea. 

 and hardy stock. 



Quart, 76c.; Gallon, fl.SO. 



NIKOTIANA 



A 12% nirodnp soliitlmi properly dtluted< 

 for fumlKatinx or vnporlzlDK. 



Qaart, $1.50: Gallon. $4.S0. 



If you run not ohtiiln our proiiurtn from 

 your lof-nl iloitltT, ftrnd mm your order and 

 n'c will htilp litiititMllntoly throuRh our- 



ncnroHl iiKrn(. 



Aphine Manufacturing Co. 



MADISON. N. J. 



OEO. A. MIIIM.STON 



I'roHlclonl 



.M. O. EBEL>. 

 Treasurer 



