CONTENTS. XXXV 



(3) Illuminating: and other Apparatus. 



Watson & Sons' Macro-Illuminator 91 



„ „ Incandescent Gas Lamp (Fig. 11) 92 



G. Johnstone Stoney's Improved Heliostat (Fig. 12)| 92 



Cheshire, F. J. — Method of Using Abbes Apertometer (Fig. 13) 93 



„ „ Simple Method of Focometry and Apertometry (Figs. 14 and 15) 94 



Watsons' New Standard Electric Lamp (Fig. 16) 95 



Scheffer, W. — Small Electric Light for Photomicrography (Figs. 17-19) .. .. 95 



Lee, A. B. — llluminationJ.and the Use of the Condenser in Histological Micrography 97 



Illuminating Apparatus for Metallography (Figs. 20-24) 98 



Origin of the Davis Shutter 99 



Cheshire, F. J. — Simple Form of Reflecting Polar iser (Fig. 25) 99 



Bibliography 100 



Koristka's Large Reflecting Mirror (Fig. 59) 349 



Poll, H. — New Electrical Microscope Lamp (Fig. GO) 350 



Engelmann's Microspectral Objective with Detachable Thorp's Grating and Detach- 

 able Polariser (Figs. 61-65) 351 



Elliott, L. B.— Neio Projection Apparatus for Scientific Work (Figs. 131-134) .. 549 

 Koristka's Apparatus for the Microscopic Projection of Liquid Preparations 



(Fig. 135) 553 



„ Abbe Camera Lucida with Lens-Holder (Fig. 136) 554 



Dotvdy, H. E. — Colour Illumination of Microscopic Objects 671 



Nelson, E. M. — Early Glass Micrometers 672 



Barus — Method of Demonstrating Newton's Colours by Transmitted Light .. . . 672 



" Villagjo," & J. Rheinberg — Wide Illuminating Cones ' 673 



Monochromatic Light Apparatus (Fig. 158) 674 



Bibliography 674 



Tubeuf's Drawing Apparatus (Fig. 168) 763 



Fuess' Hemispherical Gypsum mid Metal Reflectors (Fig. 169) 763 



4) Photomicrography. 



Scheffer, W. — Stereoscopic Photography of Microscopic Objects 100 



„ „ Improvements in the Vertical Microphofographic Camera (Fig. 26) 100 



Bagshaw's ' Elementary Photomicrography ' 101 



Bibliography 101 



Turner, E. R. — On a New Arrangement for taking Photomicrographs in Colours.. 118 



Ives, F. E. — New Device for Stereoscopic Photomicrography (Figs. 40 and 41) .. 223 



Terras, J. A. — Neio Upright Photomicrographic Apparatus (Fig. 42) 224 



Bibliography .. .. 226 



Rowe, A. W. — On the Photomicrography of Opaque Object'' as applied to the 



Delineation of tlie Minute Structure of Chalk Fossils 242 



Koristka's Simplified Vertical Camera (Fig. 66) 355 



Muller, F. W. — Apparatus for Photographing with Light incident from above and 



below (Figs. 67-70) 355 



Scheffer's Stereoscopic Photomicrography ivith Weak Nullification (Figs. 159-161) 674 

 Foot, Katharine, & Ella C. Strobell— New Method of Focussing in Photomicro- 

 graphy 677 



Beck, C, & H. Andrews— Photographic Lenses 677 



Bibliography - , 678 



Watson, W. F.— Photography by Natural Lenses 764 



Bibliography .. 764 



(5) Microscopical Optics and Manipulation. 



Spitta, E. J. — An Arrangement for obtaining Monochromatic Light with the Mixed 



Jet (Fig. 1) • 15 



Rheinberg, J. — Common Basis of the Theories of Microscopic Vision, treated 



without the Aid of Mathematical Formulae 102 



Steinheil & Voit's ' Handbuch der Angewandten Optik ' 102 



Bibliography 102 



