64 



are necessary, though it may in some degree be done 

 with three. In the former case, the first house ought 

 to be started at the end of October, the second on the 

 first of December, and so on, the first day of every 

 month till April. Where there are but three houses, 

 it will be early enough to commence the first house 

 in November, the second in February, and the third 

 in April. To cause the vines to break equally all the 

 length of the shoots, tie them down to the front win- 

 dows, until the buds are all expanded, that one part 

 may not be more excited than another. When every 

 bud has pushed, carefully separate the vines one by 

 one ; regulate the shoots, stop them, and thin the 

 number of branches, and do all that is required. Then 

 tie them up loosely to the rafter ; and should they 

 hang down a foot from the glass, it is an advantage, 

 especially during the early part of the season.* (Gard. 

 Chron.) 



Temperature. — We quite agree with Dr. Lindley 

 in thinking that there can be no doubt that 48 degs. 

 is quite high enough at night for grapes in the first 

 month of their growth, and 54 degs. in the second. 

 The reason why a low temperature at night is 

 desirable, seems to be that if much heat and moisture 

 are applied to a plant in vegetation, it must grow in 

 proportion to the amount of those agents. Now, it is 

 in daylight only that plants can digest their food and 

 harden their texture ; and the amount of digestion, 



