Annual Meeting.] 374 [May 4, 



and a Review of Mesozoic Cockroaches, by Mr. S. H. Scudder, 

 with three plates ; and the Significance of Bone Structure, by Dr. 

 Thomas Dwight, with three plates. The latter memoir forms No. 

 1 of Vol. iv. One part of the Proceedings, Part II, Vol. xxin, 

 and three signatures of the next part have been issued. The 

 Proceedings are now in type to date. 



Walker Prizes. 



Only one essay on the subject announced for this year's Walker 

 Prize — Original Investigations in Lithology — has been presented, 

 and the committee will duly report upon it this evening. 



