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heat. They are used as winter protection for many 

 semi-hardy plants and late in the spring and early 

 in the fall they can be depended upon to give the 

 necessary protection during the cool days and nights 

 of these seasons. They are used by the commercial 

 gardener very largely for the purpose of hardening 

 seedlings and preparing them for transplanting to 

 field conditions. The location of both hotbeds and 

 cold frames should be selected with some care. A 

 sunny exposure is always to be preferred, and wind- 

 breaks of some kind should be provided. The 

 natural topography of the land will sometimes be 

 sufficient, but advantage may be taken of a row of 

 trees or buildings with good results. If none are 

 present, a good board fence, or if nothing better can 

 be provided, one made of corn fodder will serve the 

 purpose satisfactorily. 



In connection with the use of single-glazed sash, 

 it is necessary that mats or coverings of some kind 

 be used as additional protection during severe 

 weather. Mats of various kinds are upon the mar- 

 ket for this purpose, but with a little ingenuity rye 

 straw mats may be made at home with little cost 

 that will fulfill all requirements in this respect. 



