78 : JOURNAL AND PROCEEDINGS. 
Silurian rocks were deposited there. While the statement was 
questioned and disproved by leading paleontologists of this con- 
tinent, I think we are fairly entitled to request a re-examination of 
the graptolites, for, I think, in our Silurian rocks we can show as 
many genera and species as ever the Cambrians or even the Cambro- 
Sils. united have. We laid bare in Canada the same as Barraude 
discovered in Europe, which is unquestionably of interest to science. 
I have to direct your attention to some interesting specimens 
recently presented to the Museum by Mr. A. Walker. The two 
beautiful polished slabs of Dalomrtic limestone are a great acquisi- 
tion to the cases. They clearly demonstrate how such rock 
material has been built up on the ancient Silurian Sea bottom by 
fragments of shells, corals, Bryozoans and muddy sediment inter- 
mingled before it underwent the subsequent chemical changes. 
One of the slabs contains an exquisite form of a miniature fern. It 
was probably a Bryozoan, but I have never seen one resembling it. 
We are also indebted to Mr. Walker for a fossil of the Guelph (a 
Megalamus Canadenses), which retains a portion of the original shell 
(hitherto we had only internal casts of it.) The characteristic 
*Rhizopod of the Coal Measures (Fusilina Cylindrica), exclusively 
confined to the Carboniferous Age, and, as such, useful in dete:m- 
ining the true position of these Paleozoic rocks. ‘This, kindly pre- 
sented to us by Mr. Walker, has been temporarily placed in the 
Devonian case until the couneil furnishes another badly required for 
its proper formation 
In conclusion, I have to submit, for the consideration of the 
Section, a communication from the Chief Palzontologist of the 
United States Geological Survey, Professor C. D. Walcott, enquiring 
if specimens of our local graptolites could be obtained for the 
Museum at Washington ; and from Dr. Gunney, who intends pub- 
lishing a work on the Niagara Graptolites. In forwarding a few 
from my own collection, I mentioned I thought the Hamilton 
Association could spare some from the side cases in exchange for 
other specimens from more recent rocks which we do not possess at 
present. I presume the Professor is now away from the office, as I 
have not heard from him since. 
*This Rhizopod, I am informed, has not, strange to say, as yet been detected 
in the English Coal Measures. 
