GLACIAL BOULDERS OF OUR FISHERIES.—HONEYMAN. 211 
in length. This is completely covered with attaches; cam- 
panularia coats it. From this projects a pendant sponge—a 
Reniera—a Bryozoa, coralline, of beautiful form and of the same 
character as others frequently noticed on boulders, is also 
_ prominent. 
We have also two large, detached, bushy sponges with thick 
and short stalks. These are Renieras. 
I would only refer to another sponge from our fishing banks. 
It was brought up from a depth of 80 fathoms, at a distance of 
40 miles south of Sambro. It is shaped like the “ Cap of Liberty.” 
It is a Hexactinallid—a sponge of the highest order. It was 
highly appreciated at the I. F. E, and regarded as unique. It 
seems to have been unattached. 
This completes our series of sponges. Their aspect also is 
decidedly Boreal, as well as that of the other invertebrata of our 
Fishing Banks. 
I have yet to note the presence of Radiolaria and marine 
diatoms, which may be regarded as a sort of attachés. They 
are found in almost every one of the sponges attached to the 
several boulders. The smallness of pieces of sponges examined, 
and the number found in these pieces, indicate abundance in the 
sponges, and consequently teeming waters. From the Bulletins 
_ of the Blake Expedition we were led to infer the absence of 
Radiolarians in our Northern Atlantic waters. The Radiolarians 
are Protozoa, and the Diatoms Protophyta. | When we report 
the examinations of our sponges these Protos will be duly 
noticed. ; | 
In this Bulletin reference is made, as elsewhere, to Mr. Verrill’s 
finding Boulders on the Fishing Banks, St. George’s, ete., which 
led him to the striking conclusion, “ That a Tetriary Formation 
probably might be regarded as underlying our Coastal Fishing 
Banks.” We, on the contrary, might now be led to consider that 
our own banks are underlaid by a Carboniferous Formation, and 
that the more readily, as Lower Carboniferous Limestones, do 
exist at Chester, to the west of Halifax. Our knowledge of the 
Geology of Nova Scotia and glacial investigations lead us to the 
alternat ve set forth in our introduction, and to regard the 
