212 FRflTS AND VEGETABI.es UNDER GLASS 



lock tlic door and keep the house closed up tight for about an hour, or witli mild 

 fumigation it may remain closed all night. It would be well to ha\e the cyanide 

 broken u|) in small pieces before using it. 



\ ARIETIES OF LETTUCE FOR GROWING UNDER GLASS 



There is quite an assortment of Lettuce that will submit to the forcing 

 process, but those varieties should be selected that will head up quickly, such as 

 the Boston Market type, or May King. While the latter requires more space 

 than some of the other head Lettuce, yet perfect heads can be produced under 

 glass. 



The following varieties will all respond to indoor treatment: Boston Market, 

 Rawson's Hothouse, Rawson's Crumpled Leaf, May King, Golden Queen, 

 Ideal, Hittinger's Forcing, Glasshouse and Big Boston. Loose-headed \ariety: 

 Grand Rapids, an excellent forcer and shipper. 



This list is sufficient for all practical purposes, and includes probably more 

 names than the average grower will need. Each may choose that which he 

 prefers, for they are afl adapted to the forcing process and good results may be 

 obtained from all with proper treatment. 



