•niK WAI.TO.NIAN PROPAOATINO CASE. 



three wicks instead of one, wbich add much to the heat, but I fonnd one sufficient. 



The lamp liolds 

 more than lialf a 

 pint of oil, is three 

 iiiclics lii^h, and 

 four inches across. 

 "The best size for 

 the bo.x is thirty- 

 four inches long, 

 seventeen Indies 

 wide, thirteen deep 

 in front, and eigh- 

 teen inches at the 

 back, all inside 

 measure. Such a 

 box will hold three 

 rows of Xo. 48 pots, 

 and six pots in a 

 row ; or four rows 

 of No. 00, and eight pots in the row. When making a smaller, or a larger box, 

 one ought to fix on how many of those two sizes of ])ots the box would hold con- 

 veniently without loss of space. An amateur should never use a pot larger than 

 a 48 for striking cuttings, and that size is large enough for all his seeds. The tin 

 case to hold the water should not be less than four inclics shorter or narrower than 

 the box inside, which leaves two inches between the tin and wooden boxes at the 

 ends and sides, and it should 1)e four inches deep ; then, when the heat is raised 

 to 80*^ or 85°, it matters not if the lamp, or jet of gas, should go out for some 



A to E, 2 feet 8 inches. A to C, 1 foot 9 inclies. 

 D to E, 2 feet 7 inches. X, door for lamp. 



C to E, 1 foot. 



Boiler. B. Steam chimney, opening into the middle of box through the zinc tray. 



Zinc tray. D D D. Outer cover to boiler, through which the heat is conveyed from 



lamp round the boiler, and the smoke out throiigh E. H. Tap to draw off the water. 



