1893.] MICROSCOPICAL JOURNAL. 307 



H. — NO BASAL FEET. 



One horn on apex. Circospyris. 



No horn on apex. , Didyospyris, 



22.— Family: PHARMOSPYRIDA. Cephahs and thorax 

 or second joint. No apical cupola. 



A. — THREE BASAL FEET. 



One horn on apex. Acrospyris. 



B. — NUMEROUS BASAL FEET. 



One horn on apex. Patagospyris. 



No horn on apex. * Desmospyris. 



23.— Family: ANDROSPYRIDA. Cephalis and thorax. Ce- 

 phalis with apical cupola. 

 Shell spherical. Sphaerospyris. 



VI. — Cephalis multilocular and lobate. 



24.— Family: CANNOBOTRYIDA. Cephalis on??/. 

 No tubes on cephalis. Botryopera. 



25.— Family: LITHOBOTRYIDA. Cephalis and thorax. 



A. — MOUTH OF THORAX OPEN. 



No tubes on cephalis. Botryople. 



B. — MOUTH OF THORAX CLOSED. 



Tubes on cephalis. Lithobotrys. 



No tubes on cephalis. Botryocella. 



26.— Family : RYLOBOTRYIDA. Cephalis, thorax and ab- 

 domen. 

 No tubes on cephalis. Mouth of abdomen closed. Botryocampe. 



( To be continued.) 



A New Method of Preserving and Mounting Specimens. 



By A. HALY, 



COLOMBO, CEYLON. 



(Continued from page 276.) 



I now come to a very difficult subject : What is the action 

 of the gum and glycerine ? I have long thought, that the gum 

 was the color preserver, and that the glycerine acted first by de- 

 hydrating the animal and then by excluding air and water. I 

 was led to this conclusion by the belief that the addition of 



