CULTURE OF THE GRAPE. 205 



different periods of growth, and formation of wood and 

 of fruit, an interesting communication was made to the 

 French Academy of Sciences by M. Perzoz, and is 

 quoted in "The Horticulturist," vol. iii. p. 525, as fol- 

 lows : - 



" The new process which I propose for cultivating the 

 vine, inasmuch as it enables us to make use of half the 

 land for growing nutritive plants, may, at first sight, ap- 

 pear to differ completely from the plans now adopted in 

 vineyards. Such, however, is not the case ; and, as those 

 who have studied the various methods adopted in differ- 

 ent countries will see, several of the recommendations 

 here made have already been followed in practice. I 

 acknowledge this the more readily, as it enables me to 

 appeal, as a proof of their usefulness, to results attained 

 by a long experience. In one respect, my plan differs 

 from every other; for I propose that all the vine-stocks 

 in a certain space of ground should be brought together 

 in a trench, where by one chemical action the wood, and 

 by another the fruit, may be induced to form. This I 

 propose, in consequence of having by direct experiment 

 satisfied myself, that, of the manures which are fit for the 

 culture of the vine, some seem exclusively for the increase 

 of cells, i.e., of wood ; that others cause the develop- 



