3382. JS. D. Dana—Geology of Westchester County, N. Y. 
>. E., pp ea ae and shee s Bronx River near en Bridge, thick gn. N. 
ae 90° o'W.: and m. gn. on W. side of R.R., 8. of Wo aor 
N. Bat O78 pe "B: - at ‘Wiliams Bridge, W. of R.R. track, m. sch E., 
60° i, and E, of river, sam 
AREA es New Rochelle, N. of Davenport’s bead hee of hey Serpentine 
loe., thin GON IG* Be tn ni Biol Se nd S. 
shore of Davenport's Neck, 8 . of Serpentine loc., ee es 5° 
E.; een N. Rochelle aud Mt. Vern ae to the i i Loe hut partly whitish 
ch. and ee sym 
ivi, ‘e the W., m. se m. gn. N. 20° K. (average) 90°, t 
n map correspond, Saientad on the east, to pe 26° B., 90° x 7 es a0 
N. 21° &., 85° W., N. 20° E., 85° W.; N. 27° E., 85° W.; N. 15°-25° a. 90°-80° 
W.; 0° EB., 78° W.; N. 21°-25° EB. 70° Ww. 
In Marmaroneck, m. gn., near R.R. depot, N. 37° E., 70°-85° W.; the 4 T- 
symbol] W. correspond to N. 39° E., 80°-85° W., rock same; *. By 
90°, 80°-85° E., hard gn.; N. 29° E., 80°-85° K., hard gn.; N. 29° K., 80°-85° E., 
” 
d : 
torted; N. 18° KE. (average), 80° E.; N. 24°-30° E., 90°, "85° B.; N. 27°-30° E.; 
N. ata" B, 90°+; N. 30° E., 90° ; N24? B., 90° to 80° E.; N. 20°-23° E., 
80° EB 
Aiea mh Aage age thin m. gn. (brilliant mica scales white and black, 
white predominating), N . 10°-12° E., 68°~70° K.; N. of Portchester, m. gn. \. 
10°- 18° E., 70°- ; N. 7°-12° K., 60° * ; os es acerca N. 11° E., 90°, 
30% ‘ 
2°-4.2° Ww. CNG 
+N. 31°=16". E:; sas Wis chess *15,, 30° W. a of Se erpentine area 
m. gn. N. 37° K,, 30°~35° W.; S aes Senjenting area, N. 17°-58° W., 30°-50° E., 
' but with great contortion var. < W., arly 30°-45° deo" E.; farther S., just 
N. of R. R., N. 20° E. (but var. ‘ch 65°=7 
AREAS 7, 8.-—m. sch. 0 of Pontos, N; 16) E., 70° E.; ue ‘ey ant 
W. of river, and of N. aid or Feito N. 12°-37° F., 55° 60° E.; +m ore 
to N., N. 32° E., 60°-70° K.; Yonkers to R.R. si outh of Brikvills, the 5 t. -s 
Bila, ek 18 doe Hip gu N.2 27° E., 86° ee same, aT 
65°- 70° W gn. N. 24°-27° B., var. SX. 14° EK. and N. '38°R., “90° 
85° W. 
Area 9.—/. N. 10° E., 86° W.; W. of J, thin m. gn. N. 18°~19° E., 85° E.-85° W. 
Area 10.—The Tuckahoe belt —— little S. of bridge at Peco K. 0 
R. depot, h ae 20° 
river, S. and N. of R. d gn., contorte 7 ag K., 
85° W.; W. side of river, near bri eh gn. N. 20° E,, 6 ee oe ol oe 
on _BR., gn. N. 23° E.; W. of this point in the fiend of “a rally, é 
90°; 50 yds, N., 7. outcrops K. of R.R.—West of es ., between Bonsvil 
and Tu bende depot, hard gn., N. 20°-24° E., dip W.; Ist, 7. pee ty N. 0 
Tuckahoe Rene oar Te, 65° W.; E,. of 1. is m. sch., N.: 35° E., 60°-70° W. 
ArxA 11.—In Scarsdale, he R.R., N. and S. of depot, 2. N. 26°-28° E. i 
N. 10°88" K.], 55°-60° + mile EK. of depot., hard gn., and som 
schist, N. 26° KE. (var. to 10"), 60°-80° W.; ; again, $ mile S.E. from depot m. ee 
28° E., dip 65° W. The i. N. of depot a very narrow strip; ype valley 
eseigeee toward Hartsdale. 4 mile N. of Scars depot, W. of 
which continues N. through Fox ps Si yt grounds, 75-100 yds. wide ; 
titod gn. ., N. 18°-28" K., dip 60°-65° W.-—In Hartsdale, in road going 
E. from depot, 7. N. 18° E., 45° a but 3 mile “ of depot, m. sch., N. 18°-24° E., 
ip 60°-65° W. and 4 mile W., whitish gn., N. 17°-19° E., 60° W.—From Harts- 
dale nearly to White Plains a yee thn along east side of river. 
ple a mile N. oe Aging Plains. outcrop of 2. from beneath stratified 
N. 0) 46° he s. N. of railroad station at oe Plains, banded 
partly sie 3 oie "but var to N. rll 56°, 72° E.; 2 miles E., on road 
7 Pond, firm a N. 22° 5. to N. 50° ; + mile ‘ethos N.E., Bnei 
toid gn., N. 27°-42° E., 50° Wo: aaa ape Pond, gray gn. much co: 
