113 



'giving the height above the sea at which evidence of glacial action 

 occurs accompanies the paper. In one locality the highest point of 

 glaciation is over four thousand feet, in four other places it is over five 

 thousand feet, and in two more over six thousand feet above the sea, 

 •whilst Tod Mt., the culminating point, shows evidence of glacier ice or 

 mivie-ice action at the extreme height of 7,200 feet. H. M. A. 



■•'• On a New Genus of Siliceous Sponges from the Trenton Forma- 

 tion AT Ottawa." By George Jennings Hinde, Ph.D. Can. 

 Rec. Science, Yol. Ill, No. VII, p. 395. Montreal, July, 1889. 



From specimens of sponges discovered by Mr, Walter R. Billings, 

 of our Club, and presented to the national collection at Octavva, Dr. G. 

 J". Hinde, well known for his i-esearches in fossil sponges — to whom 

 the material was transmitted by Mr. Whiteaves — has recognized and 

 •described a new and interesting genus of Lithistid spooges. The 

 generic designation Steliella is that proposed and described, and indi- 

 cates two species, both from the Trenton formation of this city, viz : 

 S. Billingsi and aS'. crass ju. The genus Steliella finds its nearest ally in 

 the genus Aslylosjwngia, Ecemer, " but the nodes are less developed 

 •and the network is much less regular." The canal apertures of the 

 ■surface, and the shape of the sponge as well, resemble some forms of 

 Calathmn, Bill., such as G. Anstedi and C. Fittoni, but the spicular 

 structure in these latter is as yet unknown." A plate of six figures, 

 drawn by Mr. L. M. Lambe, accompanies the paper, four of which 

 illustrate >S'. Billingsi, named after our member, Mr. W. R. Billings, so 

 well known as an indefatigable worker in the Trenton of Ottawa, and 

 the two others illustrate S. crassa both in its external and internal or 



microscopic characters. 



H. M. A. 



''Notes on the Lake St. John Country." By E. T. Chambers. Can. 

 Rec. Sc, Vol. Ill, No. VII, p. 388. Montreal, July, 1889. 



This contribution to the geography and geology of the district in 



question contains some interesting notes obtained since the Lake St. 



John Railway opened. Outcrops of " Silurian," more properly Cambro- 



Silui'ian or Ordivician, limestones are noted, also peculiarities in the 



Laurentian area along the I'oute travelled. Amongst the fossil remains 



noted, one, a Cryplozoon : C. horeale, has been so named by Sir William 



