388 



APPEITDIX. 



begun to reap tlie fruits of his tedious education, and has 

 proven how much " knowledge is power." He has now 

 acquired a dominion over the material world, and a con- 

 sequent power of increase, so as to render it probable that 

 the whole surface of the earth may soon be overrun by 

 this engrossing anomaly, to the annihilation of every 

 wonderful and beautiful variety of animated existence, 

 which does not administer to his wants principally as la- 

 boratories of preparation to befit cruder elemental mat- 

 ^ ter for assimilation by his organs. 

 \ ■ . . 



In taking a retrospective glance at our pages from the 

 press, we notice some inaccuracy and roughness, which 

 a little more timely attention to training and pruning 

 might have obviated ; the facts and induction may, how- 

 ever, outbalance these. 



We observe that Fig. d, p. 27, from the want of proper 

 shading, and error in not marking the dotted lines, does 

 not serve well to illustrate our purpose. This figure is 

 intended to represent a tree of a short thick stem, divid- 

 ing into four branches, springing out regularly in the 

 manner of a cross, nearly at right angles with the stem. 

 These branches cut over about three or fom* feet out 

 from the division, form each one wing of a knee, and 

 the stem, quartered longitudinally through the heart, 

 forms the other wing. It is of great advantage to have 

 four branches rather than two or three, as the stem, di- 

 vided into four, by being twice cut down the middle, 

 forms the wings nearly square ; whereas, when divided 



