AP. PRS DAS: 
Art, XLIV.—Appendix to Paper on the Geological Relations 
ip the Limestone pelts of Westchester County, New York; by 
AM Dana. 
3. The baiege and their observed iat in Westchester County 
and New York Island. 
Iw the reg notes, the abbreviations ed are: Av, Ave 
t., Street; cale., calcareous ; 1. limestone; gn., gneiss oktety 
without pele of mica); thin gn., — sohisteen gneiss; m. mica- 
ceous, mica; m., gnv., micaceous gneiss; m. sch., mica schist ; hard 
gn., hard or compact thick- bedded gneiss "ADl., hornblende ; 
Able. lag paar N., north; S., south . E., east ; -» west; B., 
river; R.R., rai lroad; var., varyin g. In gree ss strike and 
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courses and di p given are those corresponding to the T-symbols 
on the maps ae the places mentioned; an ere there is no T- 
symbol on the map, the course and dip is pat in brackets. tse 
maps referred to are that of Westchester r County in volume 
numbered Plate V, and that of Westchester niet oa nor sore 
New York Island, in volume xxi, numbered Plate 
1. On New York Is.Lanp. 
A, East or 41ru Avenur.—W. of 3d Av., 100 yds. from 4th, on 102d St., 
g , 90°, 80°-70° E., and again yds. fi 4th Av., on 
102d St, N. 46° E. (varying), 80° E.; SW. corner of 3d Av. and 103d St., m. g 
x en a : Av. and 103d 
St. m. gn. N. 3 65° B., N. 3 , 85° he with a twist to E. and W., an 
dip 8. of 60°, hey Rie. where be rodeo 
Near 123d St. and e A, on East Riven. 0 m. pple N. 26° E., 60° W., the outcrop 
pes of water at high tide—N.W. corner 120th St. and Boe eit Av v., m. gn. N. 
68 ne P tnulting 122d St., E. of Lexington Av., N. side of St., 2. N. 
— 90°, 7 7 
TH Avent 
m. gn. N. 21° K., contorted, 90° , N. side 50 yds. from Madison 
29° E., 10°-80° W.; N. of 117th St, ‘benvieert Maglanet Av. and 4th Av., gnotasi J 
N. - E., 70°-50° E.; W. of Madison Av., m. gn. horizontal and undulating ; 
W. of W. corner of 5th Av. and 120th St., 8. of Mt. Peg Park, garnetif. m 
*This paper is contained in volumes xx to xxii of this — 
Au. Jour, “er .—Tutrp Serizs, VoL. XXII, No. 130,—Octoner, 188 
