26 
Aufgelegte Schriften: 
St. Petersburg. 
Acad. des Sciences. Bulletin 1907, Nr. 17/18. 1907 
Upsala. 
Y etenskapsakademien . 
Arkiv för Matematik. III., 3/4. 
1907 
Roma. 
Accad. dei Lincei. 
Atti. XVI., Nr. 10/11, Ser. 5. 
1907 
Toscana. 
Societä Toscana. 
Atti. XVI., Nr. 5. 
1907 
Davenport. 
Acad. o! Sciences. 
• 
Proceedings. X. u. XU., pag. i/94. 
1907 
New-Haven Gon. 
Yale University. 
Publications. XIII., pag. 47/87, 89/147, 149/297. 
1907 
Ne w-Y ork. 
Public library. 
Bulletin. XI., 12. 
1907 
Philadelphia. 
Amer. philosophical society. 
Proceedings. 48. Bd., Nr. 186. 
1907 
Washington. 
1) Carnegie Institution. 
Macdougal etc.Mutations etc. of oenotheras. 1907 
2) Smithsonian institution. 
Annual report 1905/06. geh. 
1907 
Miscellaneous collections. 50.Bd. (Nr. 1725) 1907 
Bergen. 
Sars Crustacea of Norway. V., 19/20. 
1907 
Boston. 
The American Naturalist. 51. Bd., Nr. 491. 
1907 
Washin gton. 
1) Geologien! Survey. 
Professional papers. Nr. 53. in 4°. 
1906 
Water-Supply paper. Nr. 195, 197/199, 201/206 
208. 
1907 
Bulletin. Nr. 304, 311, 313, 317, 318, 
320, 
323, 324 
1907 
2) National Geographie Society. 
The Ziegler Polar-expedition 1 903/5. geh. 4°. 1 907 
Danzig. 
Naturf. Gesellschaft. 
Schriften. N. F. XII., 1 6 . 
1907 
Nürnberg. 
Naturhist. Ges. 
Abhandlungen. XYI. Bd. 
1905 
Jahresbericht 1905 
1906 
Riga. 
N aturforscher-Y erein. 
Korrespondenzblatt. 50. Bd. 
1907 
Wien. 
Verein z. Yerbreitg. naturw. Kenntnisse. 
Schriften, 47. Bd. 
1907 
