192 Royal Society of Victoria. 



4. Thoma Microtome and Knife, with Imbedded Cancer in 

 position for section cutting ; Microscope and Lamp, 

 with Mounted Section of the same Cancer, showing 

 Cancer-cells ; Frame of Photo-Micrographs of Para- 

 sites, Fleas, Hydatid, Liver Fluke, &c. ; Micro- 

 photographic Appliances complete. Bj Mr. W. Ball, 

 F.R.M.S., Hon. Secretary of Section D. of the Boyal 

 Society. 



6. Tabular and Mechanical Aids to Calculation, including 



Arithmometer, Slide Rules, Logarithms, &c. By Mr. 

 J. J. Fenton. 



7. Electric OfBce Indicator, and a New Typewriter. By Mr. 



John Booth, M.C.E. 



8. Screw Guage on a new principle, measuring to the 40 



thousandth part of an inch, manufactured by Messrs. 

 Elliott. By Mr. Bobert Barton. 



9. New Microscope, by Zeiss of Jena, with Abbe's 



illuminating system, oil immersion lens of latest 

 pattern and high illuminating power ; Specimens of 

 the Bacillus Tuberculosis, stained by the method 

 invented by Dr. Koch. By Mr. F. W. Elsner. 



10. Katoptric Illustrations, the Sphengescope with a watch in 



motion ; a Binocular Microscope with Crystallisations 

 of Metals. By Mr. Sydney W. Gibbons, F.C.S. 



11. Harmonograph. By Mr. Henry Cornell. 



12. Large Wheel of Life (Zoetrope) with Diagrams prepared 



from photographs of living animals in motion ; Two 

 Electric Clocks under shade ; a Simple Device for 

 Copying and Enlarging Drawings or Plans ; Cubits 

 Shaky Cards (an optical illusion). By Mr. Horatio 

 Yeates. 



13. Stereoscopic Prints and Architectural Photographs. By 



Mr. J. H. Harvey. 

 Stereoscopic Photographs. By Mr. Walker. 

 Stereoscopic Photographs and a Bevolving Stereoscope ; 



also Negatives, Transparencies and Prints. By Mr. 



MUSGROVE. 



Stereoscopes and Stereoscopic Photos. By Mr. Bell. 

 Exhibited on behalf of the Amateur Photographic 

 Association of Victoria, Mr. J. H. Harvey, Hon. Sec. 



14. Impressions of Leaves of Lepidophyllum, &c., from the 



Coal Measures of Zwickau (Saxony) ; a Large Petre- 

 faction from the Secondary Limestone Formation 

 of Alcolea, province of Guadalajara (Spain) ; a large 

 Quartz Specimen of "Hauben Quartz," from Geyer 

 (Saxony). By Mr. H. Rosales, F.G.S. 



