NOTE—MOLLUSCA. 
Additional varieties of Unio tumidus.—A variety of U. tumidus has 
just been verified by M. J. R. Bourguignat. Description: Shell medium size 
smooth, marked with alternate mee ain bars of brown and green. It is now 
cock. i 
entered in the French scien spies" w The variety = originally 
named in Wilcock’s MSS ‘oul var bicolor. It is not uncommon h 
ver Tren "e name sh retained. varies Oni 
tumidus var tricta, has also been acknowledged by Bourguignat. Description: 
Shell dark solokieed; slightly incrassate, both valves constricted. ‘This form occurs 
in the Barnsley canal near Wakefield, and is not very rare. It is analogous to the 
var. constricta of Anodonta oe. ave not seen any constricted forms of 
OU. pictorum.—GEORGE RO S 
NOTES AND NEWS. 
‘ Entomologist ’ for April, 1891, p. 104, contains an obituary notice of the 
late Robert Calvert, of Bishop Auckland, itt ou R. 5,’ 
Some little time ago OW, E. Co Collinge, Editor of our contemporary, 
Th onchologist,’ was a cesied assistant in Presse 38 at St. Andrew’s 
Woinwaity, under Prof. W. C. M‘Intosh, F.R.S., 
« 
2»00<—__—_ 
A report upon bias: Entomology for 1891 is in preparation, and 
Mr. A. E. Hall, F.E.S., Norbury, Sheffield, Secretary of the Entomological 
Section of the Yorkshire Naturalists Union, w wishes us to state that in December 
ast he sent a number culars to entomologists in Yorkshire asking for 
lists of notable captures rs » made during ile thanking those 
ene n who have kindly responded, he wishes to a those who have not to do 
earliest convenience, as he is anxious to otes, however 
t thei proceed. Anyn 
vial commented with Entomology in Yorkshire will be ‘thankfully received. 
a hia taba 
It would be difficult to — the value of the influence which Dr. George 
Johnston, the celebrated Naturalist of Berwick-on-Tweed, has exerted upon the 
evelopment of Natural Science ye Biitala uring the century which is now 
drawing to a close, more ia the founder of the oldest and still one of 
he best and most flourishing of our Field te the Berwickshire Club. 
It is, a with peculiar pleasure rte thiat we draw re gers to the fact that 
his daughter, Mrs. Barwell Carter, has collected and arranged a volume of 
Dr. Johnston’s correspondents, and others referred to in the Letters 
will be published in Edinburgh by Mr. Douglas, in one volume, demy 8v0, 
containing more than 500 pages. A Portrait will also be given, and a Memoir, 
i by Dr. P i wi 
w is appropri oO 
Dr. Johnston was fou nder and first president; and it is to be hoped that ts — 
members will loyally and heartily support the venture, and that all who appreciate 
its subject will do the like. 
Naturalist 
