EEPOETS OF MEETINGS. 



203 



from Prof. Raphael Mcldola, secretary of an as.sociation for 

 promoting' tlie investigation of various plionomcna on -vvliich 

 widcspi'oad observations aro much needed. It was sug- 

 gested that members of the Society should assist in work 

 on the following subjects, selected from a long list: — 

 (1) Electrolysis ; (2) Tidal Phenomena ; (3) Meteorology ; 



(4) The Erratic Boulders of Great Britain and Ireland ; 



(5) The Circulation of Underground Water; (6) Tlie Mi- 

 grations of Birds; and (7) The Disappearance of Native 

 Plants from their Original Habitats. Mr. H. Charbonnier 

 exhibited preserved specimens of the " Gi'cy Phalarope " and 

 the "Little Gull." Mr. Edward Wilson, P.G.S., showed 

 living specimens of the large South American land snail, 

 Bulimus Ohlongus. The diameter of the shell is about four 

 inches. Empty shells of some allied species were shown for 

 comparison ; and also some of the oval, white, calcareous 

 shells of their eggs, which ai'c about one inch long. Mr. W. 

 P. Mendham read a paper on " The Deposition of Smoke and 

 Dust by means of Electricity." An abstract of this will be 

 found on page 187. 



On January 6th, 1887, Mr. H. Charbonnier road "Notes 

 on the Ileptilcs, Amphibia, and Fish of the District." This 

 is printed at page 138. Mr. LI. Tyack read a paper on 

 " The Physical Formation of the Earth." A short account 

 of this is printed at pago 192. 



On February 3rd, Prof. Ramsay, Ph.D., read a paper on 

 " Colour Blindness," which will be found at page 195. 



At the meeting on Miirch 3rd, Mr. Thomas W. Jacques 

 read some "Notes and Observations," in which he drew 

 attention to several points in natural history which need 

 elucidation, and urged all the members to record thoir 

 observations thereon, and to bring them before the Society 

 from time to time, undeterred by the common idea that 



