250 CEMENT 
MATEKIALS AND 
INDUSTRY. 
1 BULL. 243 
Analyses of Helderberg limestones, Neu 
York — Continued. 
Silica 
(Si0 2 ). 
Alumina 
(A1 2 3 ). 
Iron oxide 
(Fe 2 3 ). 
Lime 
(CaO). 
Magnesia 
(MgO). 
Carbon di- 
oxide (C0 2 ] 
5 
1.6 
7.23 
1.92 
n.d. 
n. (1. 
n.d. 
0.7 
1.64 
.36 
54. 32 
48. 68 
52. 53 
35. 25 
43. 22 
48. 82 
0. 53 
1.84 
.69 
8.94 
6.08 
1. 48 
43. 26 ! 
40. 29 
42. 03 
37. 52 
40.65 
39.99 
6 
7 
8 
n. d. 
n.d. 
n. .1. 
n. d. 
n.d. 
n. d. 
9 
10 
11 
5.53 
1.50 
50. 25 
1.00 
40.49 
12 
2.48 
5.56 
2.57 
5.66 
5.46 
.95 
1.55 
1. 55 
2.14 
1.35 
53. 52 
50. 47 
52. 69 
50. 25 
50. 80 
.46 
.83 
.84 
1.11 
1.01 
42.54/ 
40. 57 
42. 33. 
40.70 
41.02 
13 
14 
15 
16 ... 
17 
5.82 
1.38 
50. 93 
.85 
40.87 
18 
4.45 
.30 
50. 06 
2.74 
42. 36: 
19 
4.91 
4. 31 
.48 | .53 
.97 
51.82 
51.05 
1.16 
1.65 
41.90' 
41.90 
20 . 
21 
1.48 
n.d. 
n.d. 
53. 62 
n. d. 
n.d. 
22 
4.12 
9. 05 
n.d. 
6. 66 
n.d. 
.99 
52. 46 
44.72 
n.d. 
1.98 
n. d. 
37. 32 
23 
24 
5.12 
1. 45 
.74 
48. 34 
2. 93 
41.22 
25 
11.16 
3. 35 
1. 15 
44. 27 
3.17 
38. 27' 
26 
1.27 
.73 
54. 51 
.66 
43. 4( 
27 
1.84 
. 63 
1.82 
51.40 
2.23 
41.1 
28 
1.89 
1.01 
.55 
51.35 
1.67 
42. 1 
29 
2. 75 
7.10 
3.87 
1.50 
2.50 
1.07 
1.60 
1.65 
1.34 
,53. 10 
45. 22 
54. 1 1 
n.d. 
Trace. 
Trace. 
n.d 
30 
39. 1( 
40. 1 
31 
1. Fogelsonger quarry, Williamsville, Erie Countv. II. Carlson, analyst. Twentieth Ann. Kept I 
U. S. Geol. Survey, pt. 6, p. 427. 
2. Howells quarry, Leroy, Genesee County. Bull. New York State Mus., No. 44, p. 784. ' 
3. Strobel quarry, Leroy, Genesee County. Ibid. 
4. Babeock quarry, Waterloo, Seneca County. Ibid., p. 819. 
5. Alvord quarry, Jamesville, Onondaga County. F. E. Engelhardt, analyst. Ibid., p. 806. 
6-12. Clinton, Oneida County. A. H. Chester, analyst. Ibid., p. 802. 
13-17. Oriskanv Falls, Oneida County. A. H. Chester, analyst. Ibid. 
18. Putnam quarry, Oriskany Falls, Oneida County. Ibid., p. 803. 
19. Manning quarry, Columbia, Herkimer County. Ibid., p. 788. 
20. Cobleskill Quarry Company, Cobleskill, Schoharie County. C. F. McKenna, analyst. Twer 
tieth Ann. Rept. U. S. Geol. Survey, pt, 6, p. 127. 
21,22. Howes Cave, Schoharie County. C. A. SchaefTer, analyst. 
23-25. Callanan quarry, South Bethlehem, Albany County. Bull. New York State Mus., No. 44, p. 77' I 
26. Howes Cave, Schoharie County. C. A. Schaeffer, analyst. Twentieth Ann. Rept. U. S. Geo ] 
Survey, pt. 6, p. 427. 
27,28. Hudson, Columbia County. Ibid., p. 427. 
29. Holdredge quarry, Catskill, Greene County. H. Ries, analyst. Bull. New York State Mus., N( I 
44, p. 787. 
30. Turner quarry, Wilbur, Ulster County. Ibid., p. 822. 
31. Rondout, Ulster County. Ibid. 
