126 APPENDIX. 



acres of grapes in ground vineries in some favorable 

 locality. To form the vinery No. 1, p. 125, two seven- 

 feet lengths are required ; these I find from expe- 

 rience are better made of wood than iron, which is 

 heavy and expensive ; they are now made three feet 

 wide at base, and sold by Mr. J. Rivett, Stratford, 

 Essex, at from 65s. to 70s. per dozen, unglazed and 

 unpainted. Their size may also be increased to 3 feet 

 6 inches, as in No. 2, but they must then be placed 

 on a wall two bricks in height, leaving apertures, four 

 or five inches wide and six inches deep, for ventila- 

 tion ; this increase of ventilation is absolutely neces- 

 sary with No. 2. The glass used should be 21 oz., as 

 16 oz. is too slight. As the vines in ground vineries 

 often put forth their young shoots early in May, and 

 are apt to be injured by a severe May frost, it is good 

 practice to keep some refuse hay strewed over the 

 glass when there is any chance of frost in that month. 

 In gardens where these glass ridge roofs are not 

 wanted for vines or fruit tree culture, they will be 

 found most useful. They may be placed on any warm 

 border on bricks ; and early peas, French beans, and 

 many other early vegetables, requiring protection from 

 spring frosts, be grown under them with advantage. 

 For the cultivation of early strawberries they are in- 

 valuable, as they not only hasten the ripening period, 

 but protect the fruit from heavy summer showers, 

 often so injurious to the crop, and also from birds. 

 Strawberry plants, to be cultivated in ground vineries, 

 s'lould be planted early in autumn, in narrow beds of 

 two or three rows, the plants close together in the 

 rows, so as to take full advantage of the glass-covered 



