APR 10 1917 



S^^SLfJ 



THE 



VOL. X, No. 12. 



Published by the Ottawa Fieid-S^atyi'aiists" Clisb 



CONTENTS. 



1. Hymenoptera Parasitica-Proctotrypidae— By W. Hague Harrington, F.R.S.C 217 



2. Stophanoceros. A Beautiful Rotifer Recorded at Ottawa— By Walter S. Odell, Esq 220 



3. Ottawa Hydradiiiida. Notes from a paper by Von. F. Koenike describing Ottawa species 



taken by Air. J. B. Tyrre'.l 221 



4. The Lecture Course 222 



5. Notices and Reviews of recent Geological Literature : 



I>api.'rs by Dr. Baecher, Prof. Crosby, Director Agullera of Mexico, S Calvin, J. B. 

 Kimball, T. W. Stanton, J. J. Jahn, Oscar H. Hershey, J. S. Diller. R. S. Parr, O. C. 

 Marsh, F. Freeh and Vv'. Darnes, Em. de Margerie, G. Otis Smith, B. K. Emerson, W. 

 J. McGee, Jos. Leconte, G P. Merrill, J. F. Kemp, and Warren Upham. 



6. Earthquake Recorded at Ottawa, etc. 232 



7. Errata for Vol. X., Ottawa Nati'BALIST. 232 



8. General Index for Vol. X, 1896-T - I to IV 



OTTAWA, CANADA. 



Printed at the Office of Paynter & Abbott, 



48 RiDEAU Street. 



First General Excursion— Cl^elsea Mts., Que., via Gatineau Valley R. R., Saturday, May 

 22nd, 1897, 1.45 p.m. I{ates as usual. 



/entered at the Ottawa Post Otfue as semml-rlass matter. 



