Kofd The Halo Group, etc. 



Jour. Sc. Coll. Vol. XIII. PI. II. 



Fig. 1. XÜ. 



Fig- 2. X -M 



Fig. 3. X 24 



Fig. Â. x88 + niçois 



Fig. 5. X 65 



Koto pilot. 



Fig. (i. Nat. size 



imp. Tokyo Frintituj Co., Ltd. 



