293 



PROCEEDINGS OF THE SECTIONS 



(IN AJBSTBACT.) 



MICROSCOPICAL SECTION. 



Meeting held SEPTEMBER 12, 1887. 



Mr. F. B. Kyngdon in the Chair. 



Mr. MacDonnell exhibited under the microscope an unmounted 

 specimen of Flustra, also a live specimen of Chirodota. 



Dr. Wright showed under Powell and Lealand's oil immersion 

 -iVfch a specimen of Amphipleura Pellucida, and demonstrated the 

 remarkable fact, first discovered by Mr. Thomas Francis, of 

 Lavender Bay, that on removing the cap of the eyepiece and 

 putting on the analysing prism, in a certain position of the latter 

 the lines were resolved in a far more distinct manner. The 

 subject gave rise to considerable discussion. 



The Chairman placed on the table the new rules of the Natural 

 History Society. 



Mr. W. H. H. Lane presented to the Section a test-slide,, 

 containing 22 diatoms mounted in regular order in balsam, by 

 Peticolas of Richmond, U.S. The slide was accompanied by a 

 list showing the names of the diatoms, and the number of striae 

 to the inch. 



Meeting held OCTOBER 10, 1887. 



Mr. F. B. Kyngdon in the Chair. 



Dr. Wright presented, to the Section a bottle containing H. 

 R. Spencer & Co's. new homogeneous immersion fluid, with full 

 description of its manufacture. 



Mr. MacDonnell presented a slide of the wheel-plates of 

 Chirodota, mounted in balsam. 



Mr. Whitelegge exhibited living specimens of Chora and 

 Kitella, showing very distinctly the protoplasmic circulation in 

 the cells, and the antheridium and archegonium. 



Mr. Brindley exhibited some " Oriental Polish," consisting of 

 pure diatoms, under the microscope. 



Mr. Rigg exhibited several excellent slides, (chiefly petrological 

 and bacteriological), by John Watson and Sons of London. 



Mr. W. H. H. Lane presented three double-stained sections. 

 (stto oth of an inch) of woody tissue. 



