110 



Palseontological notes are given under each of these divisions- 

 showing the organisms which characterize them, and x-efeience made ta 

 the new species described for the first time, all of which will appear in 

 the next Trans. Roy. Soc. Can. The paper closes with a brief and 

 clear exposition of the physical history of Southern New Brunswick in 

 Cambrian times as shown by the Cambrian formations themselves. 



H. M. A. 



" On Fossil Sponges from Beds of the Quebec Group of Sir Wil- 

 liam Logan at Little Metis." By Sir J. W. jJawson, LL.D., 

 F.R.S. Can. Bee. Sc, Vol. Ill, No. VII, p. 429. Montreal, 

 July, 1889. 



This is an abstract of a lengthy paper read before the Royal 



Society of Canada at the May meeting, 1889, in which the additional 



material obtained by Dr. Harrington and the author at Little Metis is 



given. That paper gave " a detailed account of the containing beds, 



with a map and sections, and describes the species found, which are 



about eleven in number, all siliceous sponges, and most of them hex- 



actionellid. There are six Frotospoagice, one Gyailiospongia, ajid five 



other sponges belonging to new genera described in the paper. Other 



species found in the same beds indicate the presence of the genus 



Linnarssonia, also of a new fucoid, Buthotreplds pergracilis, whilst the 



sandstones hold " Retiolites, probably R. ensiformis of Hall," the 



Trigonograptus ensiformis of more recent classifications. H. M. A. 



"New Fossl Plants from the North-West." Bv Sir J. W. Dawson. 

 Can. Rec. Sc, VoL HI, No. VII, p. 430. Montreal, July, 1889. 



This is a note which (jails attention to the U[)per Laramie plants 



recently studied by Sir William, from Mr. McConnell's collection in 



the Mackenzie River basin, and from Mr. Weston's in the Bow River 



valley. Striking resemblances are noticed between the flora from these 



two localities and the flora of other parts of the North- West, of Alaska^. 



the Hebrides, Spitzbergen, the United States and Greenland, and the 



whole will *form a very interesting contribution to be given in the 



forthcoming Volume of Transactions. H. M. A. 



" On some Ostracoda from the Mabou Coal Field, Inverness Co., 

 Cape Breton (Nova Scotia). By Prof. T. Rupert Jones, F.R.S., 

 and J. W. Kirby. Geol. Mag. No. 300, Dec. Ill, Vol. VI, 

 No. VI, p. 269. London, June, 1889. 



