28 



Norfhcru News. 



Aug. 22nd. — The sac has a somewhat shrunken appearance, 

 but yet unbroken — the snails have increased in size. 



Aug. 24th — The snails seem to be ready for emero^ing 

 from sac. 



Aug. 25th, 7 a.m. — Thanks to a voracious roach, snails and 

 sac have entirely disappeared !— (Mrs. ) M. E. Williamson, 

 Headingley. 



FLOWERING PLANTS. 



Cochlearia danica at Arncliffe : A Correction. — The record 

 of Cochlearia danica ?Lt ArnclilTe (' NaturaHst,' October, p. 349), 

 was made on a specimen I collected. Further examination, 

 however, shows this to be C. alpina^ 2l\\A not C. danica. — 

 C. Waterfall, Hull, November nth, 1907. 







Mr. A. S. Keniiard has a paper ' On Vitrea [Hyalinia] hibernica, n.sp. , 

 in the November * Irish Naturalist.' 



Dr. E. J. Russell has a useful paper on ' The Relation between the 

 Geog-raphical Position and the Productive Capacity of Land,' in the 'Journal 

 of the Manchester Geographical Society,' Part i of Vol. 23. With the 

 number quoted this journal appears in a new and attractive cover. 



In the ' Transactions of the Manchester Geological and Mining Society' 

 (Vol. 30, parts 6-8) Mr. F. J. Thompson has a paper on ' The Rock-salt 

 Deposits at Preesall, Fleetwood, and the Mining Operations therein.' As 

 usual, the ' discussion ' following- this paper, which is printed, is worth 

 reading. 



A useful record of a useful year's work at the Manchester Museum is 

 contained in the report for 1906-7, just to hand. Owing to his removal from 

 Manchester, Mr. J. Cosmo Melvill has resigned the position of Chairman of 

 the Committee, and his place has been taken by Mr. H. Plummer. As 

 Publication No. 61, the Museum has also issued a set of ' Museum Labels ' 

 — The Principal Divisions of the Coelenterata. 



The Annual report of the Huddersfield Naturalist and Photographic 

 Society for 1906-7, is to hand, and contains a useful summary of the work 

 accomplished in the different sections. The Society probably holds a 

 unique position in the county, inasmuch as its treasurer can report, for the 

 third year in succession, that 'no subscriptions remain outstanding-.' And 

 we have good reasons for expressing our great surprise at the Society having 

 over ;^23 in hand. 



Amongst the papers read at the recent annual meeting of the Yorkshire 

 Geological Society was one on ' The Influences of the Pennine Faults on the 

 Formation of Caves, Pot-holes, and Underground Drainage of the Carboni- 

 ferous Limestone of the Craven District.' The whole of the master-joints 

 and fissures and pot-holes in the limestone were attributed to 'faults,' 

 formed somehow in a similar way to the crevasses on a glacier, a photograph 

 of which was thrown upon the screen. A 'right royal slaughter' followed, 

 in which a professor of geolog-y, a member of the Geological Survey, a 

 F.R.S., several F.G.S's., a D.Sc. , and geologists who have lived in the 

 Craven district all their lives, took part. Yet after all, the author was 

 convinced that 'his theory was i-ight.' 



Naturalist, 



