12 THE GRAPE. 
tion, the development of which is accelerated by the ex 
cessive changes from dry to moist, from heat to cold, and vica 
versa. Fortunately, the erection of glass houses is now 
so well understood, and material is so cheap, that we have 
a ready antidote; for, by planting inside these structures, 
we are enabled to equalize the temperature and overcome 
the difficulty. There is also the advantage, if we take the 
whole range of the subject, of being able to cut ripe grapes 
nearly the whole year round; and even as a general crop 
in the cold grapery, with a proper selection of sorts, a sup- 
ply may be obtained from the middle of July, or the ke- 
ginning of August (according to locality), on to near the 
end of December. 
Generally it has been thought that the cultivation of 
this desirable fruit was prohibited to all but the most 
wealthy, on account of expense, and peculiarly myste- 
terious skill. As to the first difficulty, good and suitable 
houses can be erected, when heating apparatus is not 
attached, at from $8 to $14 per running foot, on the 
length of the house, with all conveniences included, and 
proper fertilizing materials are no great expense; so 
that this obstacle can be removed even by those of humble 
means. In making the above assertion as to cost, it is 
not presumed that the lesser amount will complete a 
stately building, but a snug and well adapted small house, 
skill, if the directions h laid down (with a little 
2 observation added) be acted upon, a sufficieney of prac 
_ tical Knowledge will soon be acquired; he these hice 
tions are the result of the author’s experience, and 
Se 
