EXPLANATION OF PLATE XXIX. 
Fic. 1. ,Crystal:of Type 2. Fig. 3. Crystal of Type 3. 
Joplin Calcite. Joplin Calcite. 
One-half natural size. Mus, No. M5511. 
Musso. D LS: Fic. 4. Crystal of Type 5. 
F1G. 2. Completed ideal form of crystal Joplin Calcite. 
shown in Fig. 1, Mus. No. M5824. 
