MUSEUM OF COMPARATIVE ZOOLOGY. 93 



exhibited, a tolerable notion can be formed as to the character of the 

 materials along a line having a length of about 2,000 feet. The position 

 of the beds is in general indicated in the accompanying diagram, which 

 gives a somewhat generalized section from the north shore of the island, 

 a little west of Cedar Tree Neck, across to the small brook on the Cedar 

 Tree Neck road. On the north shore the beds occasionally exposed 

 after severe storms consist of grayish green sands, with occasional iron 

 concretions resembling those found in the " Wood Schoolhouse " locality. 

 Some of the fragments closelv resemble the material containing fossils 

 at the last mentioned locality, and in one fragment an unrecognizable 

 species of oyster was observed. At the highest point delineated in the 

 section, the shoved frontal moraine is partly interrupted, so that the un- 

 derlying rocks are exposed. Here we find a section having a length of 

 about 300 feet, showing a deposit of grayish gi-een sands alternating 

 with red and white clayey sand, the dip of the beds being to the north- 

 west, the angle varying from 45° to 60° of declivity. Proceeding south, 

 we find 300 feet of section in which the beds are concealed from view ; 

 then a small exposure of red clayey sand with an obscure dip, not more 

 than 60 feet in thickness of beds being exposed to view ; then 140 feet 

 of measures hidden by the covering of drift ; following that, 70 feet of 

 red and white clayey sand, very micaceous, dip obscure, but apparently 

 in the same northwest direction. Again, southward, a covered section of 

 about 100 feet in length, in which the drift is more or less churned up 

 with grayish sands presumably derived from the underlying beds. This 

 is the point where the fragments containing species of fossils described 

 in this report were obtained. Farther on, 600 feet of the section is un- 

 exposed ; then, for 180 feet, we have mainly greenish gray sands, having 

 a total thickness of about 80 feet, with traces of yellow and white sands 

 above and below them. At this point the dip is clearly shown. It is 

 to the northwest, at an angle of from 35° to 50°. Following to the 

 southward, 150 feet of the section is concealed; then for the distance of 

 about 125 feet, to near the margin of a small brook, the reddish clays 

 appear at the surface, but the dip is not clear. It appears to be in the 

 same northwest direction. At several points in the greenish measures, 

 some compact ferruginous layers resembling those containing fossils are 

 found ; but in none of these beds have I as yet been able to obtain 

 organic remains. They serve, however, to indicate that the material 

 containing fossils is really derived from this section. 



Until fossils are actually found in a bedded condition in the deposit, 

 it will not be possible to assert in a positive manner that this section is 



