PLATE XXXIX. 



Kn;. 07. H'lmontal preiuration of nictitating membrane of frog, coloured in chloride of gold, showing the distri- 

 Imti.m ,.f tlif noii-inriliillutiMl new.- fibres under the epithelium of the posterior surface, a. Larger, 6 smaller 

 MII; ;tll.-.st ii..]i-iii<-.liilliited neive fibres, p. 79. (Oc., 3; Obj., 8.) 



.-Vertical section of inje.-teil i-iesenteric g\nnd of t;uiiieapig, showing the distribution of the blood-ve.-.-.-l>. 

 (i. Cortical layer. 6. Medullary layer, c. Large 1.1 i %.*SM !.- ,-i the hilus of the gland, p. 118. (Oc.. 3; Obj., 2.) 



