— 34 - 



Torino. Osservazioni meteorologiche faite nelV anno 1891 

 aile Osservatorio délia R. universitate. Torino, 1892. 



Varsovie^ Observatoire. Obsei^vations faites au cercle 

 méridien, par Wastokoff. Varsovie, 1892. 



Washington. U. S. N. Observatory. Observations du- 

 ring 1888. 



Washington. S. Observatory. Report of the superin- 

 tendent for the year ending 1892 june 30. 



Washington. U. S. Coast and Geod. Siirvey. Déter- 

 mination of gravity with half-second pendidums 

 by Mendenhall. Washington, 1892. 



Zeitschrift fur Schweizerische Statistik 1892. 25. Jahr- 

 gang. Bern, 1892. 



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