34. PLATE CXX. 



other, as (hewn in our Plate, and cementing them together with a 

 glutinous fubftance ; thus the fides and bottom, each confifring of 

 feveral layers, being finifhed, (in the form of a thimble) the Bee 

 partly filTs it with a kind of pafte, then throws over it a fmall 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 £h$$kjf 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 larvae, at fig. 2. 



In this manner fhe proceeds with, and finifhes every cell diftin&ly, 

 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 Eilay on the Microfcope, mentions a remarkable 

 circumftance of a Bee (we fufpe&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 cevered in at top and 

 bottom." 



* We learn this poft was fir, 



PLATE 



