From Quain's " Anatomy" (Longmans 

 Green 6* Co.). 



A NUMBER OF CELLS WITH INTER- 

 LACING FIBRES FROM THE HUMAN 

 CEREBRUM (Highly magnified.) 



From ".4 Manual of Elementary Zoology." by 

 L. A. Borrodaile (Oxford Medical Publications}, 



REPRODUCTION BY BUDDING 



Two specimens of Hydra, magnified, one con- 

 tracted, the other in a state of moderate expan- 

 sion the latter bearing two buds in different 

 stages. 



m. mouth; or c. oral cone. 



c,n. 



From "A Manual of Elementary Zoology." by L, A. Borro- 

 daile (Oxford Medical Publications). 



\ DIAGRAM OF THE "REFLEX ARC*' 



af.n. afferent nerve; c.n.s. central nervous system; ej.n. 

 efferent nerve; mus. muscle; sen. sensory surface. 



