Ill 
Mus. Bull. 20. Geol. Ser . 29. An Eurypterid horizon in the Niagara forma- 
tion of Ontario — by M. Y. Williams. 
Mus. Bull. 21. Geol. Ser. 30. Notes on the geology and palaeontology of 
the lower Saskatchewan River valley — by E. M. Kindle. 
Mus. Bull. 22. Geol. Ser . 31. The age of the Killamey granite — by W. H. 
Collins. 
Mus. Bull. 23, Geol. Ser. 32. The Trent Valley outlet of Lake Algonquin and 
the deformation of the Algonquin water-plane in Lake 
Simcoe district, Ont. — by W. A. Johnston. 
Mus. Bull. 24. Geol. Ser. 33. Late Pleistocene oscillations of sea-level in 
the Ottawa valley — by W. A. Johnston. 
Mus. Bull. 25. Geol. Ser . 34. Recent and fossil ripple-mark — by E. M. 
Kindle. 
