530  CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1904.         [bull.  260. 
COMPOSITION. 
The  following  analyses  show  the  composition  of  the  Quaternary 
marls  of  the  State : 
Analyses  of  Quaternary  marls,  New  York. 
No. 
1 
2 
3 
4 
5 
6 
7 
8 
9 
H) 
II 
Silica 
(SiOo). 
0.40 
1.10 
.49 
.50 
.42 
.54 
.14 
.26 
.26 
6.22 
2.10 
Alumina 
(AI0O3). 
Iron  oxide 
(Fe203). 
0.20 
1.50 
.85 
2.00 
1.08 
.56 
.86 
.10 
.21 
1.70 
1.9 
0.20 
01 
,86 
Lime 
(CaO). 
53. 50 
54. 54 
52.71 
52.  70 
52. 36 
54.40 
53.16 
52. 86 
50. 98 
47.86 
48.78 
Magnesia 
(MgO). 
0.30 
Trace. 
Trace. 
1.09 
1.01 
2.34 
1.50 
.18 
.19 
.04 
1.10 
Carbon 
dioxide 
(C02). 
n.d. 
n.d. 
n.d. 
42.61 
42.26 
42.20 
n.d. 
Water 
organic, 
etc. 
CO 
<"0.86 
41.73 
4.64 
40.26 
7.98 
42.11 
CO 
39.  58 
1  S03.  1.7  per  cent. 
'  CaSOt,  3.48  per  cent. 
'  <'aS04.  2.01  per  cent. 
d  Alkalies.  2.20  per  cent, 
Livingston  County. 
null.   New  York  State  Mus.,  No. 
Miller,  analyst. 
Ibid.,  p.  707. 
Ibid.,  p.   785. 
1.  Iroquois  Portland  Cement  Company,  Caledonia 
2.  3  miles  east  of  Mumford,   Livingston  County, 
p.  703. 
3.  1  mile  west  of  Bergen,  Genesee  County.     .1.  A 
4.  Mumford,  Monroe  County.      (Calcareous  tufa.) 
5.  Millen  Portland  Cement  Company,  Wayland,  Steuben  County. 
6.  Genesee  Wayland  Portland  Cement  Company,  Perkinsville,  Steuben  County. 
7.  American  Cement  Company,  Jordan,  Onondaga  County. 
8,0.  Empire  Portland  Cement  Company,  Warners,  Onondaga  County. 
10.  Montezuma,  Cayuga  County.     Mineral  Industry,  vol.  1,  p.  52. 
11.  Canastota,  Madison  County.     Bull.  New  York  State  Mus.,  No.  44,  p.  704. 
14, 
