XX XVI CONTENTS, 



MICROSCOPY. 



A. Instruments, Accessories, &c. 



(1) Stands. p^^g 



Swift's Students' Petrological Microscope (Fig. S) 91 



„ University Binocular Microscope (Fig. 4) 91 



DrwebI's Improved Magnifier (Fiix 5) 91 



Swift's Vissecting Lens (Fig. (J) 94 



Beck's Hand Demonstration Microscope (Fig. 7) 94 



Steinach's New Microscope Stand (Figa. 8, 9) 94 



Bibliography 96 



Swift's Sub^tage loith Patent Slow Focusing (Fig. 25) 218 



„ Turrell Mechanical Stage (Fig. 26) .. 218 



Nelson, E. M. — An Agronomical Eye-piece used as a Simple Microscope .. .. 284 



Olv Microscope hy Gary (Figs. 6S, (}[)) 472 



IjEITz Microscope Stand B (Fig. 10) 475 



IjEirz Portable Microscope (Figa. 11,12) 475 



Metz, Carl. — Recent Improvementi* in Leitz Microscope Stands (Figs. 73-75) .. 476 



hEiTZ Large Mechanical Stage (Fig. H')) 481 



Ettles-Curties Ophthalmometer and Ophthalmic Microscope (Figs. 77, 78) .. 481 



Bibliography 483 



J JlCKSOh's Old Microscope (Fig. SI) 608 



QciDOR, A., & A. Nachet — A New Microscope and its Applications to Stereoscopic 



Photomicrography (Fig. 8S) 609 



T^AcaET's Oscillating Stage for Stereoscopic Microphotography (Fig. 89) 611 



Lehmann's Microscopical Observations at High Temperatures: Gas-heat Condenser 



and Air-Cooling Apparatus (Figa. 90,91) 612 



Zeiss' Heat-Microscopes (Figs. 92~9i) 615 



KoRiSTK a' s Large Model Stand lie (Fig. 95) .. .. 616 



Martens' Ball-jointed Metallographic Preparation Microscope (Fig. 96) .. .. 618 



YoiGThASDER & Soiis' Large Mechanical Stage (Fig. 97) 618 



Dissecting Stand (Fig. 109) 727 



„ „ Stand Flla (Fig. IIO) 728 



„ „ Hand Microscope for School and Demonstration (Fig. Ill) 728 



„ „ /Stond 7. (Fig. 112) 728 



Stand I Va. (Fig. 113) 729 



Mag7iijiers (Fig. lU) 729 



Beck's London Microscope ■• Iris Model (Fig. 115) 731 



(2) Eye-pieces and Objectives. 



Zeiss' Anastigmatic Magnifiers (Fig. 21) 219 



„ Verant Lenses Fig. 28) 219 



Lome, H. C. — Measurement of Highly Curved Lenses tcith the Abbe Spherometer . . 483 



Leitz Photographic Objectives loith Iris Diaphragm (Fig. 79y 484 



Bibliography 484 



Nelson. E. M. — Eye-pieces for the Microscope (Fig. 86) 525 



Siedentopf's Microscope Ocular tcith Quartzwedge Compensator (Figs. 98, 99) .. 619 



Baker, F. W. Watson — Determination of the Properties of Objectives (Figs. 100-103) 620 



Merlin, A. A. C. E. — Note on a New Prismatic Microscope Ocular (Fig. 107) .. 643 



Nelson, E. M. — A Neio Semi-apochromatic ^ (Fig. 108) 656 



Koristka's ^^ Oil-immersion Objective 731 



„ New Objective 6^ 731 



