Kelley Island, South Bass Island, and are abundant 

 throughout Michigan, a ver\' large one occupying a 

 prominent place on the campus of the University at 

 Ann Arbor. From here south they are reported in 

 various places in Indiana, and I have myself obtained 

 specimens from them in Brown Co. , Ind. , and in Boone 

 Co., Ky. The Kentucky specimen was in my exhibit 

 in the Anthropological Building in Chicago. This 

 was a boulder three feet in diameter which was 

 unfortunately broken in transit. The larger half will 

 come to Oberlin, the smaller half will go to Columbus. 

 ]Mr. Ossian Guthrie has made an important collection 

 of this same class of conglomerates from the drift in 

 various places in Illinois, reaching nearly to the Miss- 

 issippi River, in the vicinit\' of Alton. Northwest of 

 Chicago I saw boulders of this character at Lake 

 Geneva. Mr. Guthrie is of the opinion that this is 

 about the limit of its northwestern dispersal. 



Among other interesting specimens of boidders I 

 will note one containing sulphate of strontian, re- 

 ported as found some 3'ears ago by Mr. H. F. Bassett 

 in the town of Middleburg, near Berea, Ohio, and a 

 specimen of micaceous iron ore, found by Mr. M. A. 

 Davis in Wakeman, Ohio. 



I give below a list (A 1) of specimens found in 

 Lorain Co. which were submitted to Dr. Robert Bell, 

 of the Canadian Surve3' who has assigned to them their 

 approximate origin in Canada, according to the best 

 of his information. The numbers refer to the record of 

 our Oberlin College collection, where more definite 

 information can be obtained. I append, also, a list 

 (B 1) of the names of the rock found in boulders which 

 have been identified by Mr. Lynds Jones with frag- 

 ments in our collection from Canada. It is hoped that 

 these lists will facilitate further investigations, and 

 that much progress will be made during the coming 

 year. 



Oberlin. Ohio, Dec, 1898. 



