212 



concluded his remarks with a graphic account of the Pictured 

 Rocks of Lake Superior, which he thought would in time 

 become objects of general interest and resort from their pic- 

 turesque forms. The name is derived from the brilliant colors 

 in stripes upon their surface, caused by the washing over it of 

 various mineral oxides imbedded in them. Mr. Whitney exhibited 

 several drawings of these rocks. 



In reply to questions from Messrs. Teschemacher and Bouve, 

 Mr. Whitney said, that there is no new red Sandstone in the 

 region he had surveyed, nor any deposit so recent, or near it 

 in geological age. The age of the Sandstone at St. Croix River 

 was inferred from its dipping under the lower magnesian lime- 

 stone as it does in several other places. 



Mr. Desor slated that the Sandstone which is considered the 

 Potsdam Sandstone begins south of the Montreal River. The 

 deposit containing Lingula is far to the southwest at a point 

 near the Upper Mississippi. 



Dr. Kneeland read a report on the skulls of the four 

 Hindoo castes, recently presented to the Society. After giving 

 a sketch of the general characteristics of the Hindoo race, 

 with the views of authors as to their probable origin, he 

 proceeded to give a carefully prepared and detailed account 

 of each of the skulls. 



The specimens were, crania of a Bramin, Rajah, Boydey, and 

 Kayastha. In addition. Dr. Kneeland exhibited five Hindoo 

 crania, of the lowest caste, belonging to Dr. Minot and one 

 belongmg to the Society. He gave a table in which the facial 

 angle and numerous other measurements of the crania were laid 

 down. The average facial angle of thirteen skulls is 76J-°. Dr. 

 Morton, in his recently published catalogue of skulls gives as the 

 average internal capacity of thirty-one adult skulls 79.7. The 

 addition of thirteen more here gives an average of 79.5 for forty- 

 four skulls. 



From his examination of these skulls and such slight informa- 

 tion as can be found in books. Dr. Kneeland said that the Hin- 

 doo skull may be distinguished by the following signs, no one 

 being peculiar to this type, but the combination of them not 

 being found in any other race. 



