CONTENTS. 



xxxvu 



PAGE 



FASOhi>T,C.— Resolution of 200,000 lines to the inch Part 5 868 



Nelson, E. M. — Interpretation of Microscopic Images with High Powers „ 869 



Crookshask, E. M. — Photomicroijraphij Part 6 1105 



Powell's (T.) ^/3oc/iroOT(!iic Objectives ,, 1110 



liKvs.cn&'Lo'ii.B Optical Co.''s New Student Microscope {Fig. 20\) ., „ 1037 

 Crocch's (H.) Grand Model, Premier, and Student's Microscopes 



(Fi;/s. 202-205) „ 1039 



Cvtteb's (E.) Ca7n Fine Adjustment (Fig. 20Q) , 10-11 



Swift & Son's Paragon Microscope (Wale's form) {Figs. 207 and 208) „ 1043 



QvEv:is's (J. W. & Co.) Acme No. 'i If icroscope (Figs. 209 and 210) .. „ 1045 



Watson's ("W. & Son) New Histological Microscope (Fig. 211) . . . . „ 1046 



'^■Esyio^'?, Microscopic Attachment for Lantern Projection (Fig. 212) .. „ 1046 



Leeuwenhoek's ificr'^sco/ies (i^«}7s. 213-216) , 1047 



Musschenbroek's -3/jcroscqpe (i^i'f/. 217) „ 1049 



'Qy.ei.thsy'DYr's, Achromatic Objective (Fig. 21%) „ 1050 



Queens (J. W. & Co.) " -Par/oca; £'//e-jDzVces " „ 1050 



CzAPSKi, S. — Fine- Adjustment to the new Zeiss Stands (Fig. 219) ,. „ 1051 



'WEsnAT&'s (F.B..) Frictionless Fi7ie-Adjnstment (Fig. 220) „ 1052 



St^/jft's (J.) Cam Mechanical Stage (Fig. 221) „ 1052 



'Eeectuig Incandescence Lamp (Fig. 222) „ 1053 



QvEEii's (J. W.& Co.) Acme Lamp (Figs. 22S and 22i) „ 1053 



Thompson's (S. P.) Modification of the Nicol Prism, giving wider angle 



of field (Figs. 225-221) „ 1054 



Nachet's (A.) Camera Zwc/cZrt (Fi<7. 228) „ 1057 



Ward, H. Marshall — Apparatus for cultivating Plasmodia (Fig. 229) „ 1057 

 KiJCH, R. — Appa7-atus for the microscopic detection of Ehombic Pyroxene 



(Fig. 230) 1058 



Sahli's (H.) Automatic Regidator for an Incubator heated by Petroleum 



(Figs. 231 and 232) „ 1058 



Tursini's Photomicrographic Apparatus , 1060 



Denaeter, a. — Phototypic Process applicable to the Reproduction of 



Photomicrographs „ 1060 



ExNER, S., & L. Matthtessen — Cylinders which act as Lenses, -and 



give an Optical Image (Figs. 233-231) „ 1062 



EoYSTON-PiGOTT, G. W. — Definition of Hairs, " Test Rings " .. .. „ 1065 



Beck, J. D. — Working Distaiice of High-power Objectives „ 1066 



H^CKEL, E. — Use of both eyes with the Microscope „ 1067 



Proctor, R. — Minute Writing „ 1068 



ScRiBNER, F. L. — Method of making drawings of m,inute portions of 



plants „ 1068 



Van Allen, J. F. C— 200,000 fo <Ae incA „ 1069 



'QvsK,G., Death of „ 1104 



j8. Collecting', Mounting and Examining Objects, &c.* 

 Johnston-Latis, H. J. — On the Preparation of Sections of Pumice-stone 



and other Vesicular Rocks Part 1 22 



Case, Convenient Microscopical „ 149 



* This subdivision contains (1) Collecting Objects; (2) Preparing, (a) in 

 general, (6) special objects; (3) Separate processes prior to making sections; 

 (4) Cutting, including Imbedding and Microtomes; (5) Staining and Injecting; 

 (6) Mounting, including preservative fluids, cells, slides, and cabinets ; (7) Ex- 

 amining Objects, including Testiug ; (8) Miscellaneous matters. 



