Xxxiv CONTENTS. 



PAGE 



Eoux, E. — Photomicrography with Magnesium Light Parti 129 



Maektanner's (G.) Instantaneous Fhotomicrographic Apparatus (Figs. 



24-26) " 129 



T-RAMBVSTi, A.— Easy Method for ^^ Photographing" Sections „ 133 



Zettnow, E. — Chromo-copper Light-filter „ 133 



Zeiss's large Fhotomicrographic Ap)paratus {Figs. 44-49) Part 2 278 



Moellee's (H.) Fhotomicrographic Apparatus {Fig. 68) Part 3 450 



Bezu, Hausser & Co.'s Fhotomicrographic Apparatus {Fig. 69) „ 452 



Schmidt and Haensch's Apparatus for Fhotographing the Tarnish Colours 



of Iron Surfaces « 453 



SuDDUTH, W. X. — "■ Artistic Fhotomicrography attained" Part 5 698 



Zeltnow, E. — Fhotomicrography and the Chromo-copper Light-filter . . .. „ 700 



(5) Microscopical Optics and Manipulation. 



Maskell, W.-M. — Optical Effect of Focusing up or down too much in the 



Microscope •• •• Parti 134 



Microscopical Optics . . Part 2 283 



McMahon, C. a. — Mode of using the Quartz Wedge for estimating the 



Strength of the Double- Refraction of Minerals in thin Slices of Rook 



{Fig. 50) „ 286 



Meecer, a. 0. — " Method of using with ease Objectives of shortest working 



distance in the clinical study of Bacteria " „ 287 



Nelson, E. M. — " Back of the Objective and Condenser" {Figs. 51-54:) .. „ 288 



Aperture Table . . „ 292 



Aperture Table Part 3 454 



Obeebeck, a. — Simple Apparatus for measuring the Magnification of Optical 



Instruments {Figs. 92-94t) Part 5 700 



Abbe, E. — On the Effect of Illumination by means of Wide-angled Cones of 



Light {Fig. 9Q) Part 6 721 



LowNE, B. T., E. M. Nelson, & L. Wright— -D;;^rachbw Theory {Figs. 



104-107) „ 806 



Smith, T. F. — Ultimate Structure of the Fleurosigma Valve {Figs. 108 and 



109) „ 812 



Lerot, C. J. A. & J. J. Landerer. — Disturbances of Vision consequent on 



Microscopic Observations ,, 817 



Didelot, L. — Amplifying Fower of the Microscope {Figs. 110-112) .. .. ,, 818 



C6) Miscellaneous- 



Death of Dr. Zeiss Part 1 135 



„ Mr. Zentmayer „ 135 



Cox, 0. F. — Letter of Darwin to Owen Part 3 454 



Govi, G. — " The Compound Microscope invented by Galileo " . . . . . . Part 4 574 



The President, Dr. Hudson, F.E.S Part 5 598 



Celebration of the Third Centenary of the Invention of the Microscope . . „ 702 



'RoG:m,s,y^.A.— ThelateChas.Fasoldt Part 6 829 



Sgohtisu Mio'oscopical Society ,, 830 



;3. Technique. 

 (1) Collecting' Objects, including Culture Processes. 



Kain, C H. — Collecting Diatoms .. Parti 137 



JODIN, V. — Culture of Unicellular Algge , 137 



Lyon, H. N. — Improved Form of the " Wright " Collecting Bottle {Fig. 55) Part 2 295 



MuNNiCH, A. J. — Culture of Fungus of Famis {Achorion Schonleinii) .. .. „ 296 



