148 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
Slide. 
Diorite inclusion from the granite, Mt. Pleasant, Weymouth . E 1 
“ “ “ “ “ “ “ “ . E2 
U a u u a (« <c (i C 4 
Dioritic granite ; same locality ....... C 3 
Quartzite associated with the dioritic granite, just north of road 
leading east; same locality ....... 5 
Quartzite (altered granite), contact of slate and granite, Eldridge 
Hill. 19 
5. Biotite granite (Granitite). 
Weymouth t . E2 
Near South Weymouth. C 7 
Weymouth . 70 
House Rock quarry, Weymouth. C6 
6. Hornblende granite. 
(The next 20 slides were prepared for the Tenth Census of 
the United States.) 
Quincy . 17429 
“. 17436 
“ 17436a 
“.' . 26585 
“ 26585a 
“. 25607 
“ ............ 25607a 
“ 25607b 
“. 25610 
“ 25610a 
“ 25610b 
“. 26584 
“. 25617 
“ 25617a 
“. 25606 
“ Field & Wild’s quarry, blue granite .... 25616 
“ Same locality. 25616a 
Quincy, North Common Hill. 25608 
“ “ “ “. 25608a 
“ Hardwick quarry (containing glaucophane), PI.3, Fig. 10 25609 
“ “ “ “ “ ... E 4 
“ U u u u ... E 5 
“ “ “ “ “ ... E 6 
U 66 66 66 a E 7 
Quincy, North Common Hill. 55 
Basic inclusions in granite, same locality. 53 
Trap inclusions, same locality. 53a 
Black granite, West Quincy. C 8 
Pine Hill, Braintree. C 5 
Quarry on side of Pine Hill (containing pink quartz) . . 68 
Dark granite, Rattlesnake Hill, PL 1, Fig. 2, and PI. 3, Fig. 11 72a 
