402 The American Geologist. June, 1894 
drumlins are in part stratified. He also observes that a 
drumlin in Somerville shows stratification, and that, accord- 
ing to Mr. W. W. Dodge,* the drumlin of Fort Hill, Boston, 
was shown to be stratified when it was partly cot away some 
years ago. Dodge f also states that Great Head at Winthrop, 
Massachusetts, has a stratified center ; and this induced him to 
conclude that, although the hill had a drumlinoid form, it was 
not in reality a drumlin. At Revere, Massachusetts, near the 
line of the Eastern railroad, there are two drumlins which, a 
few years ago, showed much stratified drift in sections. 
The best instance of a drumlin with a stratified core, and 
one more suggestive of morainic origin than any other seen by 
me. was found four years ago at Gardner, in central Massa- 
chusetts. The description of this has never been published; 
but it will appear with the atlas sheet of that region in the 
forthcoming series published by the United States Geological 
Survey and prepared under the direction of Prof. Shaler. The 
hill in question is a typical drumlin in the western outskirts 
of the town of Gardner. At the time when it w r as studied 
there was a gravel pit in the southern end, and in this pit there 
was revealed the most typical morainic structure. Beneath 
fifteen or twenty feet of the dense till so characteristic of the 
normal drumlin surface, there was a confused, cross-bedded 
gravel, with alternate layers of till, all arranged in a con- 
fused manner. There was no sign of lenticular stratification, 
but the gravel had the shoved appearance so common in mo- 
raines, and the surface was irregularly eroded so that the till 
covering was irregular in thickness. At the time I was con- 
vinced that it was an overridden moraine ; and, as I have con- 
sidered the problem since then, the conviction has grown as 
other similar evidence has accumulated. 
In describing the drumlins near Syracuse, New York, John- 
son^ states that they are stratified; but he accepts Geikie's 
interpretation of the origin of this class of hills. In refer- 
ring to the same region, Upham§ quotes Davis as follows: 
*Ibid., p. 237. 
| Am. Journ. Sci. (3), 1888, vol. xxxvi, p. .~><>. Sec also Upham, Proc. 
Boston Soc. Nat. Hist., 1889, vol. xxiv, pp. 132,237. 
JAnnalsNew York Acad. Sci., 1882, vol. n, p. 257. 
gProc. Boston Soc. Nat. Hist., 1889, vol. xxiv, p. 238. 
