On the Depth and Saltness of the Ocean. 41 
er to be four toes and the tarsus. Feet divergent. I think the 
impressions may with propriety be referred to some member of 
the tailed or Salamandrian family of Batrachians. But until we 
get the perfect impression of the feet as we do in some ornithic 
examples, there are no true data for comparison with the feet of 
futare time form the subject of a distinct notice. 
Greenfield, (Mass.,) Uct. 7, 1847. 
Arr. VIL—On the Depth and Saltness of the Ocean. 
(From the Proceedings of the Ninth Annual Meeting of the American Association 
of Geologists and Naturalists, at Boston, September, 1847.) 
Captain Winxes, U.S.N., to whom these subjects were refer- 
red.at the last meeting of the Association, said that he found it 
impossible to make a written report upon subjects of so great 
interest as were embraced in the enquiry referred to him: from 
the little attention that had as yet been given to enquiries on 
these subjects, but few facts had been elicited; he should there- 
fore content himself by stating to the Association what had been 
done, although it was comparatively little, with the hope that 
the Association would be induced to turn their attention to the 
subject as one of great interest for future enquiry. He stated 
that with the depth of the ocean there were connected many 
«all 
en. > WI at _is open for investigation and 
Sue Bs, Voh V, Ni . 1.—Jan., 1848. ey 
