XXXIV 
CONTENTS. 
PAGE 
Neuhauss, R. — Photomicrography at Medical Congress at Berlin, 1890 .. Part G 796 
]\Iarktanner-Tueneretschee’s Photomicrography „ 79G 
]\IiETHE, A. — Absorption-plates „ 796 
Gardiner, W. — Application of Photography to the Demonstration of certain 
Physiological Processes in Plants „ 797 
(5) Microscopical Optics and Manipulation. 
Heurck, H. Van — Amphipleura pellucida and Pleurosigma angulatum .. Part 1 
„ „ Structure of Diatom Valves. (^Plates II. and III.) .. „ 
ZuNE, A. — Resolving Power a “ Superfetation ” „ 
Nelson, E. M. — Method of Detecting Sp)irious Diffraction Images {Fig. 28) Part 2 
Leroy, C. J. A. — Method of measuring the Spherical and Chromatic Aber- 
ration of Microscopic Objectives ,, 
Abbe, E. — On the use of Fluorite for Optical Purposes Part 3 
Caplatzi, a. — Jena Glass „ 
Lehmann’s (0.) Molecular Physics „ 
Ewell, M. D. — Amplification in Micrometry Part 4 
Diffraction Rings and Diffraction Spectra „ 
103 
104 
106 
242 
243 
392 
398 
399 
521 
521 
(6) Miscellaneous. 
Paris Exhibition, 1889 
Carlisle Microscope 
Orthography of the Microscope 
Mr. Crisp and this Journal 
Hudson’s (Dr.) Presidential Address, The “ Times ” on 
New Italian Microscopical Journal 
Frey, Prof., The late 
Microscopy at the Paris Exhibition 
Price of the new Objective of 1*63 N.A 
“ B. C .” — The 300^A Jubilee of the Microscope 
The Microscope banished 
Miss V. A. Latham, F.R.M.S 
Nicholson, H. Alleyne — The Microscope in Geology 
Deceased Honorary Fellows — Mr. Ralfs and Prof. Parker 
Part 1 107 
„ 107 
„ 107 
„ 107 
Part 2 244 
„ 247 
,, 247 
„ 248 
„ 248 
Part 4 522 
„ 523 
„ 523 
Part 5 669 
Part 6 797 
i8. Technique. 
(1) Collecting Objects, including Culture Processes. 
Kischensky — Cultivation of Actinomyces Part 1 108 
Bujwid, O . — Pure Cultivation of Actinomyces ,, 108 
OiJYiER, L . — Cultivation of Typhoid Bacillus in Sewer Water „ 109 
Eberth, C. J. — Friedldnder’ s Microscopical Technique for Clinical and 
Pathological Purposes Part 2 248 
Roberts, H. L . — Artificial Cultivation of Ringworm Fungus „ 248 
Fiorentini, a . — Procuring and Preparing Protista found in the Stomachs 
of Ruminants Part 4 524 
Walker, J. — Useful Collecting Device .. „ 524 
Pell, A. — Collecting -bottle for Rotifers „ 524 
Sehlen, D. von — Test-tube Holder for Microscopical Investigations {Fig. 58) „ 525 
Moore, V. A . — Preparation of Nutritive Agar „ 525 
Braatz, E. — Cotton-wool as a substitute for Silk in Bacteriological Work . . Part 5 669 
Buchner, H . — Effect of highly concentrated Media on Bacteria „ 669 
