41 



In concluding his remarks, Mr. Stewart said that he had placed under 

 several microscopes some objects to illustrate the various points he had ex. 

 plaiued, and he shortly pointed out some of the most interesting features, 

 showing how useful polarised light was in searching out details of struc- 

 ture which could not be detected by ordinary light. 



At the close of his remarks the members were invited to examine the 

 following objects with various arrangements of mica and selenite hlms 

 exhibited by Mr. Stewart and Mr. C. J. Fox, when further explanations 

 were given by those gentlemen : — 



Sulphate of nickel and potash ... ... Mr. Chas. Stewart. 



Striped Human Muscle ... ... ... „ ,, 



Ovarian tube of Cidaris ... ... ... „ ,, 



Epidermis from Human Foot, showing 



» »> 



sweat ducts, &c. 



} 



Various Mica and Selenite films and designs 



} 



for table polariscope 

 A series of Norremberg Mica Plates by") \r • P T F 



convergent light ... ... ... J 



A pair of Mica Wedges of 24 films, giving^) 



the three orders of Newton's colours ; I 



when crossed producing checks, and when I " 



placed diagonally, a series of points J 



A micro slide of two strips of Selenite "1 



ground thin along their centres and ! 



crossed, showing a central square figure i " " 



with four radial arms ... ... J 



The following objects were exhibited in the Library : — 



A new species of Rotifer ... ... ... Mr. F. W. Andrew. 



Section of Grape Vine... ... ... ... Mr. A. L. Corbett. 



Horned Aphis, Cerataphis latonie ... ... Mr. F. Enock. 



Trophi of Wild Bee — Halicthus Mr. H. E. Freeman. 



Nitella opaca Mr. H. G. Glasspoole. 



Section of Dolerite ... ... ... ... Mr. A. V. Jennings. 



Sulphate of Cadmium ... ... ... ... Mr. G. E. Mainland. 



Diatoms, Triceratium arcticum ... ... Mr. W. H. Morland. 



,, Amphi pleura pellucida in 



Prof . Smith's new medium ••• 



) 



Mr. E. M. Nelson. 



Attendance — Members, 74 ; Visitors, 9. 



