LIST OF CONTRIBUTORS. 



xlv 



PERUZZI, SIG., President of the Royal 

 Institute " di Studii Superiori,' ' 

 Florence, 1O, 11, 18, 2O. 



PISA, UNIVERSITY OF, Pisa, 2O. 



PIZZORNO, F., Bologna, 8, 1O. 



BAGONA, PROF. D., Director of the 

 Observatory, Royal University of 

 Modena, 2O. 



RESPIGHI, PROF. L., Director of the 

 Royal Observatory of the Campi- 

 doglio, Rome, 2O. 



RIGHI, PROF. A., Royal Technical 

 Institute, Bologna, 7, 1O. 



ROME, COLLEGIO ROMANO (OBSER- 

 VATORY), 2O. 



ROME, ROYAL UNIVERSITY, INSTI- 

 TUTE OF PHYSICAL SCIENCE (Prof. 

 Blaserna, Director), 2O. 



ROME, ROYAL OBSERVATORY OF THE 

 CAMPIDOGLIO, 2O. 



ROSSETTI, PROP., Director of the 

 Cabinet of Physical Science, Royal 

 University, Padua, 2O. 



ROYAL INSTITUTE " di Studii Superi- 

 ori," Florence (Sig. Peruzzi, Presi- 

 dent), 10, 11, 18, 20. 



ROYAL LOMBARDIAN INSTITUTION OF 

 SCIENCE AND LETTERS, 1O. 



ROYAL UNIVERSITY, MODENA (OB- 

 SERVATORY), 2O. 



ROYAL UNIVERSITY OF NAPLES, 

 CABINET OF PHYSICAL SCIENCE 

 (Prof. G. Giordano, Director), 2O. 



ROYAL UNIVERSITY OF NAPLES, 

 PHYSIOLOGICAL INSTITUTE (Prof. 

 G. Albini, Director), 18. 



ROYAL UNIVERSITY OF PADUA, 

 CABINET OF GEODESY AND HY- 

 DROMETRY (Prof. Legnazzi, Di- 

 rector), 2O. 



ROYAL UNIVERSITY OF PADUA, 

 CABINET OF PHYSICAL SCIENCE 

 (Prof. Rossetti, Director), 2O. 



ROYAL OBSERVATORY OF PALERMO 

 (Prof. G. Cacciatore, Director), 

 20. 



ROYAL OBSERVATORY OF THE CAM- 

 PIDOGLIO (Prof. L. Respighi, 

 Director), Rome, 2O. 



ROYAL UNIVERSITY OF ROME, IN- 

 STITUTE OF PHYSICAL SCIENCE 

 (Prof. Blaserna, Director), 2O. 



SECCHI, PADRE, Director of the Ob- 

 servatory of the Collegia Romano, 

 Rome, 2O. 



TABANELLI, T., Prof, of Physical and 

 Natural Science, Technical School, 

 Udine, 2O. 



TURIN, UNIVERSITY OF (Director, 

 Dr. A. Mossi), 2O. 



UDINE, TECHNICAL SCHOOL, 2O. 



VESUVIAN AND METEOROLOGICAL 

 OBSERVATORY (Prof. L. Palmieri, 

 Director), Naples, 2O. 



NORWAY. 



DIETRICHSON, J. L. W., Christiania, 

 15. 



ESMARK, L., Prof, of Zoology, Uni- 

 versity of Christiania, 18. 



HOLLER, DR. F., Selbo, Drontheim, 3. 



MOHN, PROF. H., Director of the 

 Meteorological Institute of Norway, 

 Christiania, 14. 



SURVEY OFFICE, Christiania, 15. 



WELLESEN, Christiania, 8. 



ACADEMY OF SCIENCES, THE IM- 

 PERIAL, St. Petersburg, 3, 1O, 

 11. 



ARGAMAKOFF (Pedagogical Museum), 

 St. Petersburg, 19. 



ARSENAL, THE, St. Petersburg, 3. 



BAIRD, G., St. Petersburg, 12. 



BAULER (Pedagogical Museum), St. 

 Petersburg, 19. 



BING, E., Riga, 1. 



BRAUER, G., Wasili-Ostrof, 22, 

 No. 5, St. Petersburg, 3, 15. 



CHEMICAL LABORATORY (Agricul- 

 tural Institute), St. Petersburg, 13. 



CHEMICAL LABORATORY (Imperial 

 Berg-Institute), St. Petersburg, 13. 



CHEMICAL LABORATORY (Michailow 

 Artillery Academy}, 13. 



CHEMICAL LABORATORY (Imperial 

 Academy of Sciences), St. Peters- 

 burg, 13. 



CHEMICAL LABORATORY (Technologi- 

 cal Institute), St. Petersburg, 12, 

 13. 



