Proceedings. 9 



[Microscopical and Natural History Section.l 



Ordinary Meeting, October 13th, 1890. 



Alex. Hodgkinson, M.B., B.Sc, President of the Section, 



in the Chair. 



There were exhibited : — By Mr. T. ROGERS, a new moss, 

 Homala densa, from Oahu ; by Mr. CAMERON, a number of 

 insects, some new to science, which he proposed to describe 

 later, also a specimen of Isostoma Boscii^ which he had 

 taken in his garden at Sale. 



Mr. Theodore Sington showed a diagram drawn to 

 a horizontal and vertical scale of eight feet to the inch, 

 prepared from careful measurements of each bed, of the in- 

 teresting section of the Carboniferous rocks exposed in the 

 new railway cutting adjoining Burnage Lane, Levenshulme. 

 Mr. Sington stated that the section extended from a 

 point 100 feet from the western face of the brickwork of 

 Burnage Lane Bridge, where the Carboniferous rocks dis- 

 appear under the overlying Permian red sandstones, to 

 about 312 feet from the eastern face of the brickwork of 

 the bridge. When first exposed the section consisted of 

 richly coloured blue, greenish, purple, red, and yellow clays, 

 which subsequently lost their brilliant colours, interbedded 

 with numerous layers of limestone, corresponding with those 

 occurring at Ardwick. The limestone beds vary in thick- 

 ness from 4 inches to 4 feet 6 inches ; the principal bed 

 occurs at the eastern end of the section. It is the one now 

 being worked at Ardwick and made into an hydraulic 

 mortar. The first limestone layer on the eastern side of 

 the bridge has the appearance of a breccia cemented by 

 carbonate of lime. Some of the beds are fossiliferous. 

 The dip is 20 degrees. A remarkable point in connection 



