56 DREER’S VEGETABLES UNDER GLASS. 
parts of the United States, save only the items of climate and 
soil; and we believe that any one who will study the con- 
struction of the New England forcing houses, the free admis- 
sion of light and air, the position and treatment of the beds, 
the starting and subsequent management of the plants, &c., 
can produce lettuce as successfully as they grow it at Boston. 
D. L. TAPPAN’S VEGETABLE FORCING HOUSE, AT 
ARLINGTON, MASSACHUSETTS. 
LETTUCE PRICES. We can give only approximate 
Winter prices for lettuce in the Philadelphia market, and 
when we quote $10 down to $4 per 100 heads it will be 
understood that the season and the demand are the controll- 
ing influences, and that fixed prices do not exist. In the 
same way cold frame lettuce may be quoted at from #6 to $3. 
per 100 heads, but these prices refer to really fine stuff. Poor 
lettuce goes a-begging. 
At these figures there is a margin of profit on carefully 
conducted operations, but there is no room in the business 
for any except wide-awake, progressive workers. 
Amateurs and beginners are perfectly safe with lettuce, 
because the demand is unfailing and the crop reasonably cer- 
tain. But when it comes to large operations, involving 
heavy investments of capital, growers must of necessity do 
like the Boston people in pushing for the best appliances and 
most advanced methods known in modern gardening. 
