LIST OF CONTRIBUTORS. 



liii 



WIECKE,DR., Cosset-, 38, 39. 

 WIKNKK, PROF. DR. C., Carlsruhe ; 



37. 



WIXKEL, R., Gottingen ; 912. 

 WINKLER, PROF., Freiberg ; 610. 

 WJNNECKE, PKOF. DR., Strasburg ; 



404, 432, 740. 

 WINTER, E., Hambwy, Einisbiittel ; 



207. 

 WUILER, PROF. DR., Gotlingen ; 



601. 

 WOHLERS (Successor to Campbell), 



Hamburg ; 930, 936. 



WOLFF & SONS, Heilbronn and 



Vienna ; 639, 641,672, 1036. 

 WULLNER, PROF. DR. (Polytechnic 



School), Aix-la-Cliapelle ; 331, 



460. 

 ZEISS, C., Jena-, 211, 215, 230, 



909-10. 

 ZIEGLER, DR. A., Freiburg, Baden ; 



898, 984. 

 ZIM.MER BROTHERS, Stuttgart; 89, 



744, 759. 

 ZORN, W., Berlin, 17, Schoneberger 



Sir.; 174. 



HOLLAND. 



ASSEN SECONDARY GOVERNMENT 

 SCHOOL; 118, 258, 278. 



BAKHUYZEX, H. G. VAN DE SANDE, 

 Director, Observatory, Ley den ; 

 392-4, 398-9, 428-9, 438. 



BECKERS SONS, West Zeedyk, Rot- 

 terdam ; 82. 



BLEEKRODE, DR. L., The Hague ; 

 299, 1041-2. 



BOCGAARD, PROF.DR. J. A., Director 

 of the Museum of Anatomy, Aca- 

 demy of Ley den ; 900. 



BOSSCIIA, PROF. J., Royal Polytech- 

 nic School, Delft ; 255, 342, 345, 

 579,885, 888, 921. 



BRONDGEEST, DR., Physiological La- 

 boratory and Ophthalnwlogical 

 School, Utrecht; 958. 



BUYS-BALLOT, PROF., Utrecht ; 53, 

 127, 184,264,391, 413, 700, 766, 

 904, 934. 



DE Loos, DR. D., Director of the 

 Secondary Town School, Lcyden ; 

 259,671. 



DONDERS, PROF., Physiological La- 

 boratory and Ophthalmoloyical 

 School, Utrecht; 178, 318, 957- 

 60, 962-70. 



ENGELMANN, PROF., Physiological 

 Laboratory and Ophthalmological 

 School, Utrecht; 167, 317, 957, 

 959-60. 



FERHAAR, A. T., Utrecht; 977-8. 



GRONEMAN, DR. F. G., Director of 

 the Secondary Government School, 

 Groningen-, 149. 



; GUNNING, DR. J. W., Professor of 

 Chemistry. " Athen&um Illustre" 

 Amsterdam, and Scientific Adviser 

 to the Treasury Department, Hol- 

 land, Amsterdam ; 156-7, 259. 



HARTING, PROF. DR. P., University 

 of Utrecht; 938. 



HOOGEWKIUTF, S.,Pii. D., Rotterdam*, 

 176, 255. 



JIui/iNGA, PROF., Director of the 

 Physiological Laboratory, Univer- 

 sity of Groningen ; 940, 976. 



MEES, PROF. R. A., Director of the 

 Physical Laboratory, University of 

 Groningen; 162, 189, 190, 335, 

 475. 



MULDER, DR. M. E., Groningen ; 920. 



OTTMANS, H., 141, Amstel Hooge 

 Sluis, Amsterdam ; 901. 



OUDEMANS, PROF. A. C., Hoyal 

 Polytechnic School, Delft ; 591. 



ROYAL POLYTECHNIC SCHOOL (Prof. 

 J. Bosscha), Delft ; 255, 342, 345, 

 579, 885, 888, 921. 



RUKE, PROF. DR. P. L., Director of 

 the Cabinet of Physics, University 

 of Leydcn; 81, 131, 178, 246, 255, 

 321, 410, 413, 427, 462, 900. 



SCHOOL, SECONDARY GOVERNMENT, 

 Assen; 118,258, 278. 



SCIENTIFIC SOCIETY OF ZEELAND 

 (G. N. de Stoppelaar, Sec.), Mid- 

 delburgh; 900. 



SNELLEN, DR., Physiological Labora- 

 tory and Ophthalnwlogical School, 

 Utrecht ; 748, 961-2, 964-5, 967. 



SNYDERS, J. A., Lecturer, Royal 

 Polytechnic School, Delft; 176, 

 936. 



