8R 



HORTICULTURE 



July 26. 1919 



EVERYTHING NECESSARY for the GOLF COURSE 



The Highest Grade Grass Seed Our Specialty 



\A/n Mowers of All Kinds 



Thomas J. Grey Co., 16 s * 5 M s ?„ R N "5Is? TREET 



THE 

 BOILER OF 



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Krncschcll Boilers, the best by test since 

 IH79. Forty years' experience. 



THE QUALITY PLACE OF BOSTON 



Regarding the Kroeschell, It is the 

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(Signed) 



WM. W. EDGAR CO., 



WAVERLEY, MASS. 



No Masonry — No Tubes 



TCBELESS BOILKK 



Kroeschell Bros. Co., 



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3,016,286 sq. ft. of glass was equipped with 

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(Signed) CHRIST. WINTERICH. 

 DEFIANCE, OHIO. 



Principles and Practice of Pruning 



Leoturer oi 



By M. O. KAINS 

 Horticulture, Columbia University 



Few practices In the hi, idling; ef plants, especially 

 fruit bearing plantB, attract so much Interest as do those 

 of pruning. The methods are so varied, the results so 

 diverse, and the opinions of growers so apparently con- 

 tradictory that this subject Is always one of the most 

 interesting, and the surest to hold attention and arouse 

 discussion. 



Particularly during the last ten or fifteen years when 

 the principles of plant physiology have been more and 

 more satisfactorily applied to plant production and man- 

 agement has Interest settled In pruning. During the 

 latter half of this time also more and more Investi- 

 gations and tests have been conducted by experiment 

 stations and other workers to test out methods and 

 principles In the Interest of science and for the benefit 

 of growers. The accumulation of such new knowledge 

 has become very considerable especially In the last de- 

 cade, but It Is necessarily so scattered that very few 

 growers have access to it, hence the demand for a book, 

 which shall present the really Important features of 

 these Investigations as well as set forth the fundamental 

 principles based upon the laws of plant growth. 



This volume Is lavishly Illustrated mainly by actual 

 photographs of specimens which show good and bad 

 practices. The author has spared neither time nor ex- 

 pense in gathering his photographs, each one of which 

 tells Its story. 



After a few pages of Introduction the author discusses 

 Plant Physiology as related to pruning. A chapter 

 takes up the Philosophy of Pruning, itself a very In- 

 teresting subject. Then follows a classification and clear 

 discussion of Buds, very fully Illustrated from life. How 

 Wounds Heal Is an exceedingly Interesting chapter, as are 

 also those on Prevention and Repair of Mechanical In- 

 juries, Pruning Nursery Stock, Young Trees, Mature 

 Trees and Odd Methods of Pruning and Training, Re- 

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Profusely Illustrated. 400 pages. 

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IOETICULIIRB rUBLliHLNO CO. 

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Plant Propagation, Greenhouse 

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By M. G. KAINS 



We have had many inquiries from time to time 

 for a reliable and up-to-date book on plant propa- 

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 In books that have come to our notice. So it is 

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 condensed cultural instructions in tabulated form, 

 covering annuals and pe/ennials from seed, 

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 greenhouse and house plants, ferns, palms, water 

 plants, orchids and cacti. The illustrations are 

 numerous, comprising 213 figures and halftone 

 plates. There are 322 pages well bound and on 

 heavy paper, teeming with helpful information 

 It is a book which no cultivator can afford to do 

 without. It is worth many times its price. Copies 

 can be supplied from the office of HORTICUL- 

 TURE at publisher's price, $1.50. 



HORTICULTURE PUBLISHING CO. 

 147 Summer St., Boston, Mat*. 



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