THE THEORY 



HORTICULTURE: 



OR, 

 AN ATTEMPT TO EXPLAIN 



THE PRINCIPAL OPERATIONS OF GARDENING 



UPON PHYSIOLOGICAL PRINCIPLES. 



JOHN LINDLET, PH.D. F.R.S., 



VICE-SECRETARY OF THE HORTICULTURAL SOCIETY OF LONDON, AND PROFESSOR OF 

 BOTANY IN UNIVERSITY COLLEGE. 



" Though I am very •raalble that It it from long experience chiefly that we are to expect the moit certain ralea 

 of practice, yet it it withal to be remembered that the likeliest method to enable us to make the most judidoae 

 obeervat lous, and to put us upon the moat probable means of huprovinr, «ny art, is to get tbe beet insight we can 

 Into Ihe nature and properties of those thing* which we are derirooa to cultivate and Improve."— HaU* , i Y»tttabJ» 

 MtatUt, 1. S7S. 



SECOND AMERICAN EDITION, WITH NOTES, etc 



A. J. DOWNING. 



NEW YORK : 

 WILEY AND HALSTED, 



851 \b ROADWAY 



1859, 



