Notes and Comments. 349 
be found, among other places, in woodlands, in courses and on 
banks of clear streams and small! water runs, in well troughs, 
on moist shady walls, dripping rocks, moorland ground, tree 
trunks, poor starved fields, waysides, garden walks, poor 
lawns, greenhouses, etc. 
OF HALIFAX MOSSES. 
There are specimens gathered from all the above habitats. 
These are named and arranged according to the system adopted 
by the Rev. H. N. Dixon, M.A., in his ‘ Students’ Handbook of 
British Mosses,’ 1896. In addition to the technical name of 
the moss, each packet bears the date when the specimen was 
gathered, the locality where found, and name or initials of 
finder. It is noticeable that many were gathered in the 
Hebden Bridge district by James Needham, and by Mr. J. T. 
Aspin in other local districts. An extra box is set apart for 
the reception of the Halifax mosses found in Leyland’s Her- 
barium of British Plants. This herbarium was formed by 
Roberts Leyland for the museum founded by the Halifax 
Literary and Philosophical Society at Harrison Road about 
1830, of which he was one of the original members, a trustee, 
and curator of the Museum until his death in 1847. As is 
well-known, the society presented the collections in their 
museum to the town in 1896, and they have since been housed 
at Belle Vue. 
LEYLAND’S MOSSES. 
When, in rgor, Mr. Crossland went through the moss por- 
tien in search of Halifax specimens to include with his own in 
compiling the moss section of ‘ The Flora of Halifax’ (by 
Crump and Crossland), he kept Leyland’s specimens separate, 
so as to render them of easier reference to future local students. 
The collection was found to contain about 100 specimens 
collected within the Parish, bearing dates between 181g and 
1846, but mostly during the years 1833 to 1837. Where 
necessary, modern names were added, and all were numbered 
according to Dixon’s ‘ Handbook’ Catalogue, a marked copy 
of which is deposited with the mosses. In addition to this, Mr. 
Crossland has presented to the Public Library a copy of ‘ The 
Flora of Halifax,’ with the moss portion (pp. 145-203) marked, 
indicating the specimens in each collection. 
THE USE OF FOSSIL FISHES IN STRATIGRAPHICAL GEOLOGY. 
From Dr. A. Smith Woodward of the British Museum we 
have received a copy of his presidential address dealing with 
the above subject. In this he points out that it is clear from 
the stratigraphical distribution of the Paleozoic and Mesozoic 
fishes, after due allowance has been made for imperfections in 
the record, their order of succession corresponds with their 
zoological grade as determined by embryology—a fact first 
1915 Nov. 1. 
