[GNE0U8 AND CRYSTALI 
25. MISGELLANE 
Collected by B. K. Em< reon and anpub] - -late of writ' 
A. Wehrlite, New Braintra Contains 
anorthite, biotite, apatite, chromite, magnetite. Trhotite. Anal- 
ysis by L. G. Eakins, record No. L325 
B. Black, serpentiniz* It be, St A:... W. F. Hille- 
brand, record No. L555. 
C. Highly metamorphosed f eldspathic conglomei _ into 
arkose-gneiss, electric railroad cut. Marlbor . 
1 reorgre 
Steiger, record No. 1536. 
I). Phonolite, Southboro. No description furnished. Analysis 
H.N. Stokes, record No. L653. I MorineandfluoA 
93.2 per cent of the rock A decompoa ible by hydrochloric acid. 
ALO, 
FejO, 
PeO,. 
MgO . 
OaO- 
Sit/) . 
H,Oat 100°— 
H,0 abov< 
TiO, 
P a O s 
OrA 
MnO 
BaO 
CO, 
SO, 
1.41 
• -- 
3.41 
.21 
. 57 
.10 
1.19 
I 
- 
. - 7 
trace 
none 
13. 03 
1. 33 
2.44 
5.14 
.15 
.73 
.21 
none 
100.13 
- - 
- i 
- 
- 
5. 57 
- 
.11 
none 
.19 
trace 
trace 
none 
99.74 
Keratophyr, Marblehead Neck. Described by Sears, in Bull- 
Museum Compar. Zoology, vol. 16, No. 9, p. 17". Contains crystals of 
feldspar, with a decomposed base, irregular patches of quartz, -ome 
scales of biotite and grain- of magnetite, and also some limonite and 
earthy matter. The feldspar Lb anorthoclase. Analyses by T. M. 
Chatard. record No. 1176. 
Bull. 168 3 
