vi PREFACE 



the Orange Judd Company in 1893, has been 

 the standard and only work devoted entirely 

 to greenhouse construction as adapted to 

 American conditions. To this and to Pro- 

 fessor Taft the author of the present volume 

 is deeply indebted. It is not intended that 

 this second book shall supersede the former 

 but that it shall supplement it and emphasize 

 present-day features. Probably in no line of 

 horticulture has so great progress been made 

 in the past quarter of a century as in floricul- 

 ture and vegetable forcing. The develop- 

 ment of the forcing house has been no less 

 rapid. 



No attempt has been made to discuss the 

 question of greenhouse construction from the 

 standpoint of the manufacturer, although 

 due credit must be given to the energy and 

 ingenuity which he has displayed in meeting 

 the rapidly changing conditions and in the 

 excellence of present-day construction. It 

 is probably not too much to say, that the 

 development of the flower and vegetable 

 forcing industry has been largely dependent 

 upon the improvement which has been made 

 in the manufacture of greenhouse material 

 and equipment. 



The real purpose of the book is to pre- 



