68 Geology, &c. of the Connecticut. 
No. 37. Red slate—As No. 9, but harder and coarser 
and less irregular on the surface of the layers. Thickness 
3 rods, dip 40° 
No. 38. Same as No. 22. Thickness 20 feet, dip 40°. 
No.'39. Similar to No. 38, but more micaceous and di- 
visible, i 4 thinner layers 3 resembles much, certain varie- 
ties of mica slate, except that the silex has a more earthy as- 
pect. But it would not be difficult to deceive almost any 
geologist by labelling hand specimens, mica slate. Thick- 
ness 2 feet, dip 40°. 
No. 40. Same as No. 37. Thickness 10 feet, dip 40°. 
This carries us to the dam across the Connecticut. 
o. 41. Hard gray sandstone slate—Like No. 22, but 
more undulating and irregular. Thickness 5 rods, the 
ge distance the scale is much reduced. 
N ery near No. 41, but coarser and not so undu- 
lating. “Thickness 8 rods. 
No. Coarse gray conglomerated sandstone—layers 
thick. ‘Thickness 12 rods. 
No, 44, Same as No. 40. 3 rods thick, dip 35°. 
No. 45. Alluvion—20 rods. 
No. 46. Same as No. 32, about 2 rods thick. 
No. 47, Same as No. 40, 1 rod thick. 
No. 48. Alluvion—a quarter of a mile; beyond this the 
section is continued on the south bank of the river. : 
oO. ame as No. 37, one half a mil 
No. 50. (No. 10.) 4 sired Meateassbeeds rock—unstrati- 
fied, 20 feet thick, very hard and tough, imbedded frag- 
ments, chiefly reddish brown quartz, appearing as if it had 
undergone the action of fire,a little micaceous, cement often 
blackish, appearing like veins, sa aC ferruginous, rock 
resembling some varieties of porp 
0. 6.) Dark gray, very sila sandstone slate— 
Harder than shal somewhat argillaceous in its odour, a lit- 
tle micaceous, surface rough and nt coarse, slightly sono- 
rous when struck, 1 rod thick, dip 40 
No. 52. Same as No. 50, 1 rod thick. 
53. Similar to No. 39, 5 rods thick. 
No. 54. Alluvion between half and three quarters of @ 
mile. 
No. 55. Same as No, 9, halfa mile. 
