PKOCKEDINGS OF THE GFOLOOICAL SOCIETT. I 69 



The following specimens wore exhibited : — 



Specimens exhibited by E. Wilson, Esq., F.G.S., in illustration of 

 his paper. 



Specimens and microscopic sections exhibited by E. Wethered, 

 Esq., E.G.S., F.C.S., in illustration of his paper. 



Specimen from the Ilha^tic Bone-bed from Blue Anchor, near 

 Watchet, with Blende and Celestino, collected by Spencer G. Per- 

 ceval, Esq. Exhibited by permission of the Director-General of the 

 Geological Survey. 



May 27, 1891. 



Dr. A. Geikie, F.R.S., President, in the Chair. 



William Fischer Wilkinson, Esq., Assoc.M.Inst.C.E., Peter- 

 borough House, Harrow-on-the-Hill, was elected a Fellow of the 

 Society. 



The List of Donations to the Library was read. 



The Secretaey announced the presentation by Sir J. W. Dawson, 

 LL.D., F.R.S., K.C.M.G., of photographs of Hylonomus Lyelli and 

 Dendrerpeton acadicnnim, and read the following explanatory note 

 written by the donor : — 



Note on Photographs presented to the Geological Society hy 

 Sir J. W. Dawso^st. 



The photographs of Hylonomus Lyelli are from the type specimen 

 presented to the Geological Society by Sir J. W. Dawson several 

 years ago. It has been cleaned, and two photographs have been 

 taken, one natural size, the other enlarged. Though less complete 

 in regard to the skull than some other specimens, it is one of the 

 most perfect in other respects, and shows very well the more im- 

 portant general characters of the skeleton. 



The other photograph is from an unusually large specimen of 

 Dendrerpeton acadianum obtained last summer from an erect tree 

 at the South Joggins, Nova Scotia, and showing the mandibles, 

 some bones of the anterior extremity, and a portion of the skull. 

 This specimen is in the collection of Sir J. W. Dawson, and a descrip- 

 tion of it will appear in the ' Geological Magazine.' 



Dr. G. J. HiNDE remarked that additional interest attached to 

 the genus Hylonomus from the fact that a representative of it had 

 lately been discovered in the Burnley Coalfield, and described by 

 Mr. A. Smith AVoodward, F.G.S., in the May number of the Geol. 

 Mag. under the name of Hylonomus Wildi. 



