34 Pr AS Cx 
other, as fhewn in our Plate, and cementing them together with 4 
glutinous fubftance; thus the fides and bottom, each confifting of 
feveral layers, being finifhed, (in the form of a thimble) the Bee 
partly fills it with a kind of pafte, then throws over it a {mall quantity 
of leaves, reduced to powder, and depofits the egg ; the covering to 
the whole is formed of the fame materials, and in the fame manner as 
the bottom ; when fhe has forced about ten or fifteen circular pieces” 
of leaves into the avenue and cemented them to the top, the covering 
is completed, and the egg is completely fecured from accident—The 
covering feparated is fhewn in the Plate, at fig. 3, the larva, at fig. 2. 
In this manner fhe proceeds with, and finifhes every cell diftinély, 
till the perforation is entirely filled: in fome trees forty or fifty fuch 
perforations are placed within a quarter of an inch of each other.—_ 
The Bee comes forth late in Auguft ; if the loweft is formed before 
thofe above, it eats its way up the channel, through their cafes. 
Mr. Adams, in his Effay on the Microfcope, mentions-a remarkable ~ 
circumftance of a Bee (we fufpect of this fpecies). ‘ A friend of mine 
(fays he) had a piece of wood cut from a ftrong poft * that fupported 
the roof of a cart-houfe, full of thefe cells or round holes, three- 
eighths of an inch diameter, and about three-fourths deep, each of — 
which was filled with thefe rofe-leaf cafes, finely covered in at top and ~ 
bottom.”’ 
* We learn this poft was fire 
PLATE 
ate 
we 
