424 



Various Preparations Demonstrated by this Method."' Ex- 

 hibit of light filters and monochromatic screens, with refer- 

 ence to their value in the improvement of the performance 

 of microscopic lenses, by Mr, Hale. 



August 25. — Demonstration of the recently arrived 

 Episcope and Projection apparatus by the President of the 

 Section, Mr. W. Fuller, who explained the optical principles 

 involved in the construction and performance of these in- 

 struments and the method of operating, exhibiting a large 

 number of microscopic and photomicrographic preparations, 

 the work of members of the Section. 



Harold W. H. Hale, ) t -^ tt o ^ • 



I Joint Hon. Secretaries. 

 H. A. Whitehill, j 



MICROSCOPICAL SECTION 



ROYAL SOCIETY OF SOUTH AUSTRALIA 

 (INCORPORATED). 



iJALANCE-SHEET, SESSION 1907-8. 



Receipts. 



