mental Farm, was made, and interesting sections recorded. Special 

 attention was given to ancient river channels, and many evidences were 

 obtained respecting their course and extent. On both sides of the 

 present Ottawa Kiver, ancient river channels were discovered and noted. 



Mr. C. B. Wright's brick yard was visited, by Mr. Ami in Febru- 

 aiy, and he obtained the line specimen of a young harp seal, which is now 

 in the National Museum, Sussex street. It was embedded along with 

 other species of marine organisms, in the "Leda clay" formation, at a 

 depth of thirty-two feet. The specimen exhibits the lower left ramus, 

 portion of skull, and most of the vei-tebrse, and costse, with the scapula 

 and other bones of the limbs, and is nearly entire. Mr. T. C. Weston 

 has cleverly articulated the specimen, and it may be seen in the museum. 



In the Utica formation two important discoveries were made by 

 Mr. Ami, viz., a new sponge, and a new barnacle. The sponge consists of 

 slender and simple spicules, arranged in a cyathiform or radiating manner, 

 and occurs in the upper portion of the lower half of the Utica forma- 

 tion. The first specimens collected were obtained from the Utica 

 shales drawn to the paths of Major's Hill park, from a lot on the Mon- 

 treal Road near the St. L. & O. R. R. crossing. The best collection 

 however, was made from a trench on Albert street, between O'Connor 

 ,and Bank streets, at the same horizon. The best specimens were sent 

 to Dr. Geo. J. Hinde, whose researches in fossil sponges are so well and 

 favourably known that the Ottawa material could not be placed in bet- 

 ter hands. Dr. Hinde has very kindly undertaken to describe this 

 species, which seems to belong to a new generic type. 



The other new form of interest, found in the Utica, last summer, is a 

 remarkable example of a Turr'depas, which was found associated with 

 Siplionoireia Scotica, and other forms already recorded in the Ottawa 

 Naturalist, in the lower Utica at the Rideau River beds, oi)posite the 

 rifle range. These cirripedes are of rare occurrence in Canada, only one 

 or two other sjiecies having been noted from New Brunswick, in Silurian 

 and Cambro-Silurian, (Ordovician), strata. This Ottawa Turrileioas was 

 forwarded to Dr. Woodward, F.R.S., etc., Keeper of the British Museum, 

 who has made a special study of this interesting group of fossils, and a 

 pa}ier on it will shortly appear in the Geological Magazine, London. 



