XXxiv CONTENTS. 



MICROSCOPY. 

 A. Instruments, Accessories, &c. 

 (1) Stands. 



PAOE 



Nelson, E. M. — A Two-speed Fine Adjustment (Fig. 2) 19' 



Ives, F. E. — New Binocular Microscope (Fig-. 3) 85 



Watson & Sons' Metallurgical Microscope (Fig. 4) 86 



„ „ Museum Microscope (Fig. 5) 8S 



„ „ Method of Fitting the Stage and Limb of Van Heurck Microscope 



(Fi<r.6) 88 



„ ,, Attachable Mechanical Stage (Fig. 7) 89 



Portable Class-Microscope (Fig. 8) 89 



Barbour's Pocket Microscope (Fig. 9) 90 



Bibliography 90 



Bourguet, A. — New Arrangement for avoiding Injury to Preparations when Focus- 

 sing with Bigh Powers (Figs. 31 and 3S) 220 



Forgan, W. — Modern Fine Adjustments 221 



Beck's Portable "Star" Microscope (Fig. 54) 345 



„ Process Microscope (Fig. 55) 340 



„ Pathological Microscope (Fig. 56) 346 



„ Metallurgical Microscopes (Fig. 57) '-'AS 



Bausch & Lomb's Continental Microscope. BB Model (Fig. 58; 349 



Old Microscope by M. Pillischer (Figs. 121 and 122) 542 



New Portable Microscope (Furs. 123 and 124) 543 



Beck's Portable Continental Model (Figs. 125 and 1 20) 544 



Leitz' New Double-hinged Limb-holder (Figs. 127 and 128) 545 



Koristka's Mechanical Stage (Fig. 129) 547 



Hand Magnifiers (Fig. 130) 548 



Nelson, E. M. — An Old A'on-Acliromatic Simple Microscope (Figs. 143-148).. .. 5S7 

 „ „ An Early Compound Microscope with a Mirror attached to its Limb 



(Fig. 149) 590 



„ „ An Improved Horseshoe Stage (Figs. 150 and 151) 591 



Leitz' New Stand and Fine Adjustment (Figs. 152-154) 605 



Kraus, Ii. — New Jlegulating Arrangement for a Hot Stage 669 



Watson's New Scdp Mechanical Stage (Fig. 155) 6G9 



Kegadd, Cl., & Nachet — New Microscopical Stand with a Movable Stage capable 



of Large Movements 670 



Watson's New Pattern Portable Microscope (Fig. 156 and 157) .. 670 



Leitz' Mineralogical Stand No. I. (Fig. 163) '. .. .. 758 



„ Mineralogical Stand No. II. (Fig. 164) 758 



„ Handloups (Figs. 165 and 166) .. 761 



Boley, P. — Very Powerful Micrometric Microscope 761 



Watson's " Argus " Attachable Mechanical Stage (Fig. 167) 761 



A Lens Pseudoscope 762 



1.2) Eye-pieces and Objectives. 



Barbour's Pocket Magnifier (Fig. 9) 91 



Bourguet's New Index Ocular (Fig. 10) 91 



Bibliography 91 



Hunter, J. — Eye-piece Lens Interval as arranged for Achromatism (Fig. 39) .. 221 



Schmidt, H. — Graphic llepreseutation of the Correction Distance of an Objective 762 



Eberhard, G. — The Injurious Effect of Cement upon Objectives 762 



Bibliography 763 



