Obituary. 163 



List of Papers and other Communications made to The Royal 

 Microscopical Society by Professor E. Abbe. 



On Stephenson's System of Homogeneous Immersion for Microscope Objec- 

 tives.— 1879, p. 256. 



On New Methods for Improving Spherical Correction, applied to the Con- 

 struction of Wide-Angled Object-glasses.— 1879, p. 812. 



Some Remarks on the Apertometer. — 1880, p. 20. 



On the Conditions of Orthoscopic and Pseudoscopic Effects in the Binocular 

 Microscope.— 1881, p. 203. 



Xote on a Fluid for Homogeneous Immersion. — 1881, p. 866. 



On the Estimation of Aperture in the Microscope. — 1881, p. 388. 



The Relation of Aperture and Power in the Microscope : — 



I. General Considerations as to Wide and Narrow Apertures. — 1882, 

 p. 300. 



II. The Rational Balance of Aperture and Power— 1882, p. 460. 



II. Continued, (ii.) Division of the entire Power of the Microscope 

 between Ocular and Objective.— 1883, p. 790. 



On the Mode of Vision with Objectives of Wide Aperture. — 1881, p. 20. 



Note on the Proper Definition of the Amplifying Power of a Lens or a 

 Lens-System.— 1884, p. 348. 



Note on Limits of Resolution in the Microscope. — 1885, p. 970. 



On Improvements of the Microscope with the aid of new kinds of Optical 

 Glass —1887, p. 20. 



On the Effect of Illumination by means of Wide- Angled Cones of Light. — 

 1889, p. 721. 



[Some of the papers were written in English by the author, others were in 

 German, and were translated.] 



Julius Eheinberg. 



