CONTENTS. XXXV 



MICROSCOPY. 



A. Instruments, Accessories, &c. 



(1) Stands- 



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Beck's New Portable Dissecting Microscope (Figs. 1, 2) .. .. 94 



Reichebt's New Stand VII. (Fig. 3) ' 95 



"***"'„ New Handle Microscope (Fig. 4) 95 



Rosenhain, W. — On an Improved Form of Metallurgical Microscope. (Plate VI. 



and Figs. 21-24) 146 



Watson & Sons' Club Microscope (Fig. 25) 216 



„ „ Praxis Petrological Microscope (Fig. 26) . . .. 216 



School Microscope, 1905 Model (Fig. 27) 216 



Reichebt's New Large Mineralogical Stand (Fig. 28) 216 



„ Dissecting Microscopes, with Handle (.Figs. 42, 43) 360 



Studnicka, F. K. — A New Construction of the Preparation Microscope (Fig. 44) . . 361 



Bronee's Polarisation-Microscope-Polymmeter 362 



BlBLIOGEAPHT 362 



Zeiss' Large Mechanical Stage (Fig. 54) 489 



„ Stand for Crystallographic and Petrographic Work (Fig. 55) 489 



Holder, J. T. — Old Microscope, by Pritchard , 596 



Zeiss' Martens Stand (Fig. 65) 598 



Beck's " Class " Dissecting Microscope (Fig. 66^ 600 



Bibliography 600 



Sampson, Major F. R. W.— Old Portable Microscope by Dollond (Fig. 76) . . . . 713 



Granger's Pocket Microscope (Fig. 77) 715 



Watson's Junior M eta llurgical Microscope (Fig. 78) 716 



Zeiss' Measuring Microscopes (Plates XX., XXI.) 716 



BlBLIOGEAPHT 719 



(2) Eye-pieces and Objectives. 



Ross' Dry and Water Immersion % Objective (Fig. 29) 221 



Howland's Instrument for Centring, Marking, and Testing Lenses (Fig. 30) . . . . 221 

 Beck, R. & J. — New Form of Ehrlich Eye-piece for Counting Blood-corpuscles 



(Kig. 45) 362 



Melassez, L. — Magnifying Power of Microscopical Objectives 362 



„ „ Evaluation of the Power of Microscopic Objectives 363 



Cheap Glass Lenses 364 



Bibliogbapht 364 



Zeiss' Compensating Ocular 4* with Iris Diaphragm (Fig. 56) 491 



Rublee, W. A. — Fluid Lenses 491 



Bibliography 492 



Pauly, A. — Simple Compensator Ocidar 600 



(3) Illuminating- and other Apparatus. 



Nernst-Paul Optical Electric Lantern (Fig. 5) 96 



„ ,, High-power Electric Projector Lamp (Fig. 6) 97 



„ ., Electric Science Lantern (Fig. 7) 97 



Paul, R. W. — Adjustable Microscope Lamp (Fig. S) 98 



Aitchison Photometer 99 



Beck's Large Bull's-Eye Condensing Lens (Fig. 9) 99 



„ Iris Diaphragm (Fig. 10) 99 



Sauver's Bridge Object Holder (Fig. 11) 99 



Watson & Sons' High-Angle Condenser Carrier for Petrological Microscopes .. 223 



Miller's Sub-Stage Spark- Gap Lamp for the Microscope (Fig. 31) 223 



c 2 



