i86 



HARDWICKE'S SCIENCE-GOSSIP. 



and Platycola, both decumbcns and longicollis. Ento- 

 mostraca — Cyclops, Daphnia, Diaptomus, Cypris 

 and Bosmina longirostris. Hydra vulgaris and 

 several worms are also common. I give the above 

 from memory ; had I taken a full account, the list 

 would have been considerably enlarged, but a 

 sufficient number has been named to show the 

 remarkable character of the pond and to justify the 

 secondary title I have given to these notes. 



J. E. Lord. 



Rawtenstall. 



Note. — Since the above was written I have brought- 

 up the number of species of the Rotifera to 45, by 

 the capture of the following, and so " breaking the 

 record : " Notommata aurita ; Dinocharis tetractis ; 

 Monbstyla bulla ; Fwcularia ffielandrkus ; F. ensi- 

 fcra j Diglena grandis ; Euchlanis uniseta. — J. E. L. 



RECENT ARTICLES AND PAPERS WORTH 

 READING. 



SOME British Freshwater Worms," by E. C. 

 Bonsfield ("Wesley Naturalist," June).— 

 'The Mesozoic and Crenozoic Realms of the 

 Interior of North America," by Professor Cope 

 ('American Naturalist," May). — " Photographing 

 by Gas-Light," by John Bartlett ("Amateur 

 Photographer," June 3). — " Micro- Organisms and 

 Disease" ("Eng. Mechanic," June 3). — "American 

 Jurassic Mammals," by Prof. Marsh, part ii. (" Geol. 

 Mag."July). — "A Prodrome of a Memoir on Animal 

 Locomotion," by Dr. Harrison Allen (" Proceed. 

 Philadelphia Acad, of Nat. Sciences ").— " Is Mono- 

 tropa uniflora a Parasite?" by Dr. G. Baptie 

 ("Ottawa Naturalist").— "A New Series of Berlin 

 Wools for the Scientific Detection of Sub-normal 

 Colour- Blindness," by Dr. C. A. Oliver (" Medical 

 News," Sept. nth, 1886).— " Raising Diatoms in 

 the Laboratory," by Prof. S. Lock wood ("Journal 

 New York Microscop. Soc.").— " The Smut of Corn," 

 by the Rev. H. Friend (" Wesley Naturalist," July). 

 — " The Zoological Society of London " ("Nature," 

 June 23rd).— " Science for Artists" ("Nature," 

 June 30th).— "Architecture in the Reign of Queen 

 Victoria" ("Builder," June 25th).— " Preparation et 

 Conservation des Crustacees, Decapodes Brachyures, 

 et Macroures" ("Feuille des Jeunes Naturalistes," 

 July).—" History of the County Botany of Wor- 

 cester," by Win. Matthews ("Midland Naturalist," 

 June).— "The Occurrence and Function of certain 

 Nitrogenous Bodies in Plants," by W. E. Stone 

 ("Botanical Gazette," June). — "Geology of the 

 Skipton and Ilkley Railway," by S. A. Adamson 

 (" The Naturalist," July).—" The ' Salting Mounds ' 

 of Essex," by H. Stopes (" Essex Naturalist," July). 

 — " Grasses of the South," by Dr. G. Vasey 

 ("Bulletin No. 3 Dept. Agriculture" U.S.A.).— 



"Review of the Progress of North American Pale- 

 ontology in 1886," by J. B. Marcon ("American 

 Naturalist," June). — " Photography, Past and 

 Present," by Ed. Dunmore ("Amateur Photo- 

 grapher," July 1st). — " Some Essex Boulders," by 

 Rev. A. W. Rowe ("Essex Naturalist," June). — 

 " The Significance of the Yolk in the Eggs of 

 Osseous Fishes," by E. P. Prince (" Annals and Mag. 

 Nat. History," July). — " Dimorphism in Fungi," by 

 Geo. Norman ("Journal of Microscopy, &c." July). — 

 " On the Water in the Chalk beneath the London Clay 

 in the London Basin," by Robt. B. Hayward (Ditto). 



SCIENCE-GOSSIP. 



Mr. Albert E. Coe, of Norwich, writes : — " I 

 have just read the notice on p. 162 of Science- 

 Gossip, of Mayall's photographs taken in a camera 

 and in colours instantaneously. This is incorrect. 

 The negative is made in the camera as usual without 

 colour ; a copy on gelatine is then made which admits 

 of colour being applied by hand to the back and 

 front, in the same way as chrystoleum and like 

 methods. The daily papers were misled in giving 

 their statement, with the result of a general round of 

 " Photographs in natural colours " appearing in 

 periodical papers, instead of which it is a very old 

 process, and one which I experimented with for 

 Sawyer and Bird, many years ago." 



The activity and zeal of our Canadian brethren is 

 shown by the fact, that; the Ottawa Field Naturalists' 

 Club have brought out their " Transactions " as a 

 monthly periodical, under the title of " The Ottawa 

 Naturalist." 



Mr. J. E. Bagnall reports finding Dicranuni 

 tindulatum, Ehrwart, for the first time as a British 

 plant, near Great Wolford, Warwickshire, on the 

 31st of May. 



The "Long Excursion" of the Geologists' As- 

 sociation commences on August 8th, and extends to 

 the 13th. The area selected is Cornwall, com- 

 mencing at Truro, proceeding to the Pliocene beds 

 at St. Erth, and thence to Marazion, St. Michael's 

 Mount, Penzance, and St. Just. 



The dinner to Professor Tyndall, on June 29th, 

 was a great success. In the multitude of Jubilee 

 honours it seems singular that his name is left out. 

 Only a few other scientific men's names have been 

 more prominently before the public for the last half- 

 century. It serves him right — he ought to have been 

 a brewer ! 



The meeting of the French Association for the 

 Advancement of Science will be held at Toulouse, 

 commencing on September 22nd. 



