40 WILD FLOWER PRESERVATION 



cannot be obtained from every dealer, but may 

 be bought from those mentioned in section 1 at 

 30 cents per quire, $5.00 per ream and upward, 

 according to weight. Heavy white drawing 

 paper makes an excellent, and much cheaper, 

 substitute. The grades sold by the Milton 

 Bradley Co., Boston, under the trade names of 

 Bradley 's White, Nos. 1 and 2, Springfield 

 White and American White are all good the 

 second and fourth heaviest and stiffest and 

 therefore best. In sheets 12 x 18 inches, which 

 can be cut to size with little waste, these papers 

 cost $1.40 to $2.40 per ream. Smaller quanti- 

 ties may be bought at corresponding prices 

 and all grades should be obtainable of dealers 

 in school supplies. 



Genus-covers are folders of heavy manila 

 wrapping or tag paper, slightly larger than 

 the mounting sheets. Their use is explained 

 on p. 148. 



16. Piece of Plate or Window Glass. On 

 this the glue is spread when mounting and it 

 should be about the size of your mounting 

 sheets. 12 x 16 inches is one of the standard 



