474 
MEASUREMENTS OF CRYSTALS. 
APATITE. (Continued.) 
Fig. 109. 
M one ... 150° 
Figs. 110 and 111, represent the rounded 
terminations and bent prisms found at 
Hammond, St. Lawrence county. 
Fig. 112. A compound crystal from the 
preceding locality. 
Fig. 113. 
Mona .......... 129°13'53" 
P on®. 140 46 7 
FLUOR SPAR. Figs. 114 to 118 inclusive. Page 
243. 
Fig. 115. The primary, a regular octa¬ 
hedron. 
PonP' . 109°28 / 16" 
Fig. 114, shows the manner in which the 
cubes of flour spar cleave into octa¬ 
hedrons and tetrahedrons. 
FLUOR SPAR. 
Fig. 117. The octahedron with the solid 
angles replaced. 
P on i . 125°15 / 52 // 
DATHOLITE. Figs. 119 and 120. Page 246. 
Fig. 119. The primary, aright rhombic 
prism. 
M on M / . 103°40' 
PHARMACOLITE. Figs. 121 and 122. Page 247. 
Fig. 121. The primary, a right oblique 
angled prism. 
Fig. 122. 
/on/ .. 117°24 / 
P * to the edge between 
/and/ .. 83°14 / 
n on n ..141 8 
Incorrectly o at page 257. 
