XXXVI 



MICROSCOPY. 

 A. Instruments, Accessories, etc. 



CD Stands. page 



Ewell, M. D. — Convenient Form of Stand for use as a Micro-colorimeter and with 



the Micro-spectroscope (Figs. 2-4) .. , 14 



Zeiss' Microscope for Investigating Ultra-microscopical Particles (Fig. 5) .. .. 91 



Bibliography 92 



Watson's Naturalist's Microscope (Figs. 18, 19) 224 



Henker, O., & M. von Rohr — Binocular Loups of Weak and Medium Magnification 225 



Doelter, C. — Neiv Heat Microscope (Fig 47) .. 366 



Wright, F. E. — New Petrographic Microscope (Figs. 53-56) 502 



Watson & Sons' "Advanced'' Petrological Microscope (Figs. 57,58) 506 



Bibliography 508 



Miller-Williams, E. B. — On a New Fine-adjustment for Body and Sub-stage of 



Microscopes 535 



Old Achromatic Microscope by Trecourt and Georges Oberhaeuser (Fig. 78) . . . . 640 



Old Microscope presented by Mr. Albert Ash (Fig. 79) 642 



Old Microscope presented by Mr. C. F. Rousselet (Fig. 80) 642 



Johannsen, A. — Simple Improvements for a Petrographical Microscope (Figs. 81-84) 643 



Watson & Sons' " Royal" Microscope (Figs. 85-87) 646 



Qdidor-Nachet Microscope (Fig. 88 and PI. XII.) 649 



Bibliography 650 



Borrow, R. — Useful Microscope Device (Fig. 106) 760 



Neisser, M. — Bacteriological Demonstration Table 761 



(2) Eye-pieces and Objectives. 



Watson's 1/6 and 1/12 Objectives (Figs. 20, 21) 226 



Wright, F. E.—New Petrographic Ocular (Figs. 59-70) 508 



Watson & Sons' Parachromatic Objectives (Fig. 89) 651 



(3) Illuminating and other Apparatus. 



Beck-Gordon Speculum Lamp (Fig. 6) 92 



Bakrett, W. T. — New Form of Polarimeter for the Measurement of the Refractive 



Index of Opaque Bodies (Figs, 7, 8) 93 



Pringsheim's Yelloio Filters (Figs. 9-11) 96 



S.C.A. — Dark-ground Illumination (Fig. 12) 98 



Harding, C. F. — Use of the Polariscope in Testing High-tension Insulators .. .. 98 



Bibliography 99 



Zehnder's Neiv Half-shadow Polarimeter (Fig. 22) 227 



Kruss Epidiascope (Figs. 23-25) 229 



Martin, P. — Application of Edinger's Dratving and Projection Apparatus to 



Macroscopic Photography ; 230 



Vles, F. — Ocular Micrometer with Interior Vernier 230 



Watson & Sons' Holos Immersion Paraboloid (Fig. 26) 231 



Samut, R. — Enumeration of Blood-corpuscles (Figs. 27,28) 231 



Pulfrioh's Stereo-Komparator (Figs. 29, 30) 233 



Bibliography 233 



Gaidukov, N. — Dark-field Illumination and, Ultramicroscopy in Biology and in 



Medicine . 367 



Clendinnen, F. J. — Micrometric Measurements ly a Projected Scale (Fig. 48) . . 368 

 Stringer, E. B. — Note on the Use of the Mercury Vapour Lamp in observing the 



Rings and Brushes in Crystals 440 



Hansen, F. C. — Monochromatic Illumination 514 



