1896 



THE MICROSCOPE. 



179 



honey-bee. Fig. 5, a, represents transverse sections of 

 some of the head and neck trachce. 



The salivary gland (figs. 6, s and 7, s) is two lobed and 

 branched. Fig, 7, represents the alimentary canal with 

 its appendages of the cockroach, and is copied from Vol. 

 V of the ('ambridge Natural History. The glands are 

 placed right and left of the crop (figs. 6 and 7). Their 



9 



^ r\ WW 



ducts coming from each lobe on either side, join on each 

 side and then those of the two sides join in the median 

 line and open into the common duct of the salivary re- 

 ceptacles (fig. 9, g). Of these receptacles there are two 

 and their ducts join in the median line and open into the 

 buccal cavity. 



The hepatic glands are eight caeca or blind tubes (figs. 

 6 and 7) attached to the alimentary canal hard by the 

 junction of the gizzard (fig. 7, b) and the stomach (fig. 

 7, e). 



