XXXI V CONTENTS. 



MICROSCOPY. 



A. Instruments, Accessories, &c. 



(1)J Stands. page 



Le Chatelier's Microscope for Examination of Opaque Bodies (Fig. 1) 81 



Gilbertson's Microscope (Figs. 2 and 3) 82 



Bausch & Lomb's Duplex Substage (Fig. 4) 83 



IjEITz' Large Travelling Microscope (Figs. 20 and 21) 200 



„ Thermometer Microscope (Fig. 22) 202 



„ New Cheap Stand (Fig. 23) 202 



Wilson's New Heating Stage (Figs. 39-11) 321 



Queen Microscope for Physical Laboratory Metal Examinations (Fig. 95) .. .. 458 



Benda, C. — Giinther's New Loup Stand 459 



Special Stand and Specimen-holder for the Microscopical Examination of Metals 



(Fig. 96) 459 



Dippel, L. — Ordinary Microscope arranged for Axial Images of Doubly Refracting 



bodies (Fig. 104) .. .' " -'. 578 



Zeiss' Focussing Microscopes (Fig. 105) 578 



„ Focussing Glass (Fig. 1 0(J) 579 



Bibliography 579 



Seibert's New Microscope for Crystallography and Petrography (Fig. 144) .. .. 694 



Becks' London Microscope (Fig. 145) 694 



Baker's Engineering Microscope (Fig. 146) 697 



Seibert's New Microscope, No. 5 A (Fig. 147) 697 



„ Preparation Microscope (Fig. 148) 699 



Marpmann, G. — Micrometer Screws and Fine Adjustments as applied to Modern 



Stands (Figs. 149 and 150) ' 699 



(2) Eye-pieces and Objectives. 



Malassez' New Micrometer Eye-piece (Figs. 42-44) 322 



„ Movable Ocular Diaphragms (Figs. 45-50) . . . . 323 



Bibliography .. .. 461 



Hartwich's New Ocular Micrometer (Figs. 107 and 1 OS) .. 580 



„ New Micrometer Ocidar with Fixed Object Stage (Fi^s. 109 and 110) 580 



Bibliography .* 581 



Kreidl's New Stereoscopic Loup (Figs. 151-154) 701 



Seibert's New Demonstration Loup (Fig. 155) 703 



Loup Stand (Fig. 156) 703 



(3) Illuminating: and other Apparatus. 



Ashe's Camera Lucida (Fig. 5) 84 



Rousselet, C F. — Electric Focus Lamp for the Microscope (Fig. 6) 86 



Ward, R. H. — Resolution of Strise. 86 



Druner's New Magnifying Stereoscopic Camera (Fig. 24) 202 



Ross' "No. 1 Model" 'Projection Lantern (Fig. 25) 204 



„ Arc Lamp " A " (Fig. 26) 206 



"-B" 200 



„ " Radiant" Jet (Fig. 27) 206 



Koristka's Abbe Camera Lucida (Fig. 28) 206 



Leitz' Large Project ion Apparatus (Figs. 51 and 52) 325 



Liesegang's Universal Projection Apparatus (Fi^s. 53 and 54) 327 



Patterson, W. L. — Combined Condenser and Polariser for Petrographical Micro- 

 scopes (Big. 55) ' 329 



Rheinberg, J, — New Arrangement for Viewing Diffraction Spectra (Fig. Ill) .. 582 



