VI INTRODUCTION. 



after which it proceeds in a spiral around the object held in its embrace. 

 The strawberry-plant will thrust its runners completely across a garden 

 walk on to a bed of soil on the oi)posite side ; where it will for the first time, 

 as it were pcrceving its object to be gained, push out roots, and form a new 

 plant. Trees are frequently found, which have taken root on one side of a 

 deep ravine, and having exhausted the sterile soU on that side, have pushed 

 their roots across the abyss, and having gained the opposite side, there struck 

 deep into the fertile soil. 



The above few preliminary remarks are introduced for the purpose of 

 showing the importance of studying this branch of science ; and in order to 

 make the present volume as instructive, useful and entertaining as possible, 

 the proprietors have made extensive outlays for the improvement of the em- 

 bellishments, as well as the general appearance of the current volume ; and 

 feeling grateful for the more than expected patronage they have received 

 EincG the introduction of the work, they would return their sincere thanks to 

 their subscribers, still asking a continuance of their patronage and co-opera- 

 tion in extending still farther its circulation. 



