1900J MICROSCOPICAL JOURNAL. 255 



so doing they have benefited many outside their own mem- 

 bership, and doubtless added to the popularity as much 

 as to the usefulness of the Society. The well-known York- 

 shire Naturalists' Union, has, we believe, a similar scheme 

 in hand. The President of the Manchester Society for 

 the year is Professor Sydney J. Hickson, D.Sc, of Owens 

 College, and his presidential address on zoophytes is the 

 first paper in the report. Perhaps the most important 

 paper is one by Mr. F. W. Gamble, of Owens College, on 

 k 'The Power of Color-change in Animals," a subject in 

 which the author is specially interested, and concerning 

 which he and Mr. F. W. Keeble have been able to make 

 original investigations. The most interesting papers to 

 our readers will be one on "Collecting Lepidoptera," by 

 Mr. H. Gr. Willis, from which we would have liked to 

 make extracts had space permitted, and another on "Ar- 

 boreal Aphidse," by Mr. A. T. Grillanders. Amongst other 

 papers we may particularize one on "Termites and Ants 

 of West Africa," by Mr. Mark L. Sykes, and another on 

 "The Pollination of Flowers," by Mr. Charles Turner. 

 There are several excellent plates. Mr. C. F. Rousselet's 

 "Method of Preserving and Mounting Rotifera" is given 

 in full ; and as this method has been brought prominently 

 before microscopists, we shall reprint it in our next issue. 

 The Report can be obtained, from the Hon. Secretary, Mr. 

 E. C. Stump, 16 Herbert Street, Moss Side, Manchester. 

 A list of the Extension Section's lectures can be obtained 

 from Mr. George Wilks, 56 Brookland Street, Eccles New 

 Road, Manchester. 



Swift's New Portable Microscope. — Messrs. James 

 Swift & Son have recently brought out a new folding mi- 

 croscope for travelling, for bedside diagnosis, or for field 

 work. It is furnished with both coarse and find adjust- 

 mentg, the latter being markedly superior to those usual- 

 ly fitted to microscopes of this type. The optical tube 

 carrying the objectives is made to slide in its fitting so as 



