4.22 
cesophageal ganglion; not the sub-cesophageal, though situated 
near the latter. 
4, Herpenuatn defends his observations on the gastric 
glands against Rollet. 
5. VALENTIN, continuing his ‘‘ Contributions to Micro- 
scopy,” treats of the ocular spectrum apparatus as applied to 
the microscope. 
6. Max ScuHuLrzE contributes a valuable paper on the 
retina, containing new observations. 
7. ScH6BL’s account of the nervous structures in the 
mouse’s ear we have already noticed (see this Journal for 
July). 
8. Lanpoisand THELIN contribute permanent reproductions 
of photographs of microscopic objects printed by the gelatine 
process. ‘The specimens are somewhat rough, but for some 
purposes the process might be valuable, 
