SACBEOOD. 



23 



Fig. 25.— The tissues of a worker larva after being dead of saobrood about one week. A, cross section, 

 semldiagrammatlc, of the abdomen in the region of the ovaries, showing a recently cast cuticula, or 

 molt skin (Cs), a vswly formed oatioala (CO, the hypoder^iis (Hyp), the stomach (St), the ovaries ( Ov), 

 the heart (Ht), the ventral nerve cord (VNC), the dorsal diaphragm (DDph), trachese (Tra), oeno- 

 cytes (Oe), and fat cells (FC). Between the cuticula Ca and the cuticula Ci is a considerable intercu- 

 ticular space (IS). B represents the body wall in this pathological condition, showing the cuticula Ca 

 and the cuticula Gi, both bearing spines (SC2 and SCi), and theinterouticular space (IS) in which is 

 found evidence of a coagulum formed from the fluid filling the space by the action of the fixing fluids. 

 The remainder of the body wall, the hypodermis (Hyp), and the basement membrane (BM) are also 

 shown. C, fat cell with irregtdar outline, irregular nucleus (Nu), and deep staining bodies- (DSB). 



D, oenocyte with uniformly staining cytoplasm, and with a nucleus (Nu) having a uniform outline. 



E, a portion of the stomach wall showing the epithelium (SEpth) during metamorphosis, it being at 

 this time quite columnar in type, and the musculature (M). (Original.) 



