318 



HOETICULTUEE 



February 28, 1914 



P^OBi 



HEWS STANDARD POTS 



99 





POT MAKERS FOR 140 YEARS 



WORLDS LARGEST MANUFACTURERS 



Pearson Street 

 LONG ISLAND CITY, N. Y. 



WRITE FOR CATALOGUE AND DISCOUNTS 



A. H. HEWS & CO., Inc. 



Main Office and Factories 

 CAIMBRIDGE, MASS. 



inch pipe contains 2.44 lbs, of water. 

 One lineal foot of three and one-half 

 inch pipe contains 4.28 lbs. of water, 

 or slightly more than 2 quarts. There- 

 fore one square foot of surface in two 

 inch pipe contains very little more 

 than one-half as much water as one 

 square foot of surface of three and 

 one-half inch pipe. One square foot 

 of three and one-half inch cast-iron 

 pipe surface costs 24% cents. One 

 square foot of two inch guaranteed 

 wrought iron pipe surface costs 22 Vi 

 cents. 



With all kinds of houses and for 

 nearly all purposes, the piping should 

 be as near the floor as practicable. 

 There should be no overhead pipes. 

 Hot-water coils should be made up 

 of an equal number of flows and re- 

 turns. These pipes should be parallel 

 to each other, and should be graded 

 to rise about three-eighths of an inch 

 in 10 feet toward the far end of the 

 coil. The flows should be set on top of 

 the returns, and the accumulating air 

 should be taken out by means of auto- 

 matic headers, air cocks, or open air 

 pipes at the far end of the coils. 



Air traps must be avoided. For 

 control, one valve only is needed for 

 each hot-water coil. This valve should 

 be on the flow connection. In very 

 short coils, however, it is sometimes 

 found necessary to valve both connec- 

 tions, flow and return, to prevent the 

 coils from warming up through the 

 return connection. In steam fitting it 

 is essential to grade the pipes so 

 there will be no water pockets. 



Good drainage is required absolute- 

 ly. The current of entrained water 

 should be with the current of steam 

 and not against it. Piping should be 

 so fitted that expansion may be taken 

 up when possible by a springing pipe. 

 Expansion joints should never be used 

 when expansion may be compensated 

 for in another way. Steam coils are 

 generally constructed of one and one- 

 quarter inch pipe, which size gives 

 .43 square feet of surface per lineal 

 foot. 



The Chimney. 



One of the most neglected parts of 

 the greenhouse equipment is the chim- 

 ney. Chimneys of greenhouses are 

 frequently much lower than they 

 should be to produce proper velocity 

 or intensity of draft, and the flues 

 are often smaller than necessary. 

 Height is necessary for velocity of 

 draft and large area of cross section 

 to produce volume or quantity. In- 

 tensity of draft alone is not suflicient. 



It is possible to consume coal and 

 produce ashes without having accom- 

 plished complete combustion in the 

 boiler. The greater part of the coal's 

 value takes the form of gas. If the 

 supply of oxygen induced under the 

 grates is insufBcient, the gas formed 

 passes up the chimney unconsumed 

 and is lost. 



Do not be misled by the appearance 



PEIRCE PAPER 

 FLOWER POT 



Replaces clay pot for transferring 

 and delivery of plants without 

 damage. 



I'nder ordinary growing conditions 

 will l»st two months or more in a 

 g:reenhouse, making: them available 

 for growing many small plants. 



Received a Certificate of Merit from 

 the Society of American Florists 

 and Ornamental Horticulturists, 

 Minneapolis, August, 1913. 



Only paper pot ever so recognized. 



Ask your seedsman or supply house. 

 If they do not keep them, send 

 direct. 



3[ade in Standard 

 sizes, 3 inch to fi 

 inch inclusive. 



Samples furnished 

 free. 



E. Allan Peirce 



401 Oaks Road 

 Waltham, (Mass. 



KING 



GREENHOUSES 



Are supplied in 3 different Iron 

 Frame Types; also in tlie Semi Iron 

 or Pipe Frame styles, so we can of- 

 fer you a strong, practical Sunny 

 House at tlie price you can afford 

 to pay. 



^^'rite us today — just tell ns what 

 YOU want and we will do the rest. 



KING CONSTRUCTION CO. 



28 King's Road, North Tonawanda, N.Y. 



.1/.' i'!e Sii>i!it'/it Ai'i P.ty H,'U!./s 



Builds Good Greenhonses 



T K Y H I Al . 



THE FOLEY GREENHOUSE MFG. CO. 



N. E. Cor. 31st St. and Spaulding Ave.. 



CHICAGO, III. 



of your fire, your ash pile, and the 

 apparent velocity or intensity of your 

 draft. Many heating bailers are con- 

 demned and thrown out, and many 

 systems of piping are blamed for the 

 misdoings of chimneys. The best flue 

 is round. If the flue is square, the ef- 

 fective area is only that of a circle 

 whose diameter is equal to one side 

 of the square. Rectangular flues 

 should not be used. 



)roer'8 Peerlessi 

 Glazing Points 



For Greenbouaes 



Drire ^%xj uid tme, bec2nie 

 both bcveli are oa the laine 

 tide. Can't twist and breaic 

 th* clau In dririag. Galvan- 

 ized and will act nut. No 

 rlcbti or lefts. 



The Pterteu Glazloe Point 

 Ii patented. No otben like 

 it. Order from roar deatej 

 or direct from o«. 

 1000, 7$c. poitpald. 

 Sample! free. 

 BBRETA DREEB. 

 T14 OlMitniit Street^ 

 PhUadttlpAU. 



DREER'S 



Florist Specialtie*, 



New Brand. New Siyle. 



Hose •RIVERTON" 



Furnished to lengths up 

 to 500 ft . without seam or 

 joint. 



Tlie HOSF for the FLORIST 



^-inch, per ft., 15 c 

 Reel of 500 ft., " i4^c. 

 2 Reels, 1000 ft., " 14 c. 

 }^-inch, " 13 c 



Reels, 500 ft., " \i%t.. 

 Couplings furnished 



HENRY JL DREER. 



714 Chestnut St^ 

 Philadelphia, Pa. 



Greenhouse Materials 



FDRNISHED 

 AND ERECIEI 

 IRON or WOOD SASH BARS 



In all lensthg op to 32 tttH. 



Milled to any detail (urntsbed or wUI 

 (nrnlsb details and cut materials ready for 

 erection. 



Frank Van Assche, ^'''^t:Xi^%it:x'- 



JERSEY CITT, N. i. 

 1000 READY' PACKED CRATES 



STANDARD FLOWER POTS AND BULB PANS 



can be shipped at an hour's notice. Price 



HILFINGER BROS. Potter;, Fort Edward, N.Y. 



August Rolker & Sons. 51 Barclay St., N. Y. City, Aeents 



OUR SnUiUI - lone Clstance aDd TradeEivDtt 



—STANDARD FLOWER- 



Floors 



If your greenhouses are within 500 miles 

 of the Capitol, write us, we can sav 

 .Tou money. 



W. H. ERNEST 



— 28th & M Sts. WashinstOQ, D. C. 



THE FLORISTS' HAIL ASSOCIATION OF 



AMERICA, insner of 39,000,000 sq. ft. of i^aaa 



For particulars adiircss 



John G. EsJer, Sec'y Saddle River, N.J. 



When writing to advertisers kindly 

 mention HORTICULTURE. 



