The Monthly Mier os copic al Joijrrial, Ivla",-. 1. Iu70 



Pl.LII. 



ver\'e cells of Broan, 



C Cuiatt dsL.Tiiffei-VestSc 



Stepiiaiiosceros x 100 

 T'orsal aepect. 



W."v\'est,3Taj. 



