XX Additions to the Library. 



Mannheim. — Verein fur Naturkunde. 



Jalu'esbericlit. 75. 1910. 

 Marburg. — Gesellschaft zur Beforderung der gescnufen Naturwissenschaften. 



Schriften. X, 2-4, G-7, 10, 12 ; XII, 1-7 ; XIII. 1-6. 



Sitzungsberichte. 1909-10. 

 Mecklenburg. — Verein der Freunde der Nafurgeschichte. 



Archiv. LXIII, 2-LXW. 1909-10. 

 Melbourne. — National Museum. 



Memoir. 3. 1910. 

 Mexico. — Instituto Geologico. 



Boletin. 25, 27. 1910. 



Parergones. Ill, 3-8. 1909-10. 

 Instituto Medico Nacional. 



Anales. July, 1908 to Feb., 1909 and March to April, 1910. 

 Ohservatorio Meteorologico Magnetico Central. 



Boletin. May, 1909 to Dec, 1909 ; Feb. to June, 1910. 

 Sociedad Cientifica ^'•Antonio Alzate'\ 



Memorias y Revista. XXVII, 4 -XXVIII, 8. 

 Michigan. — Academy of Sciences. 



Report. XII. 1910. 

 Middelburg. — Zeeuwsch GenootscJuip der Wttensclm]>pe)i. 



Archief. 1910. 



Milan. — jB. Istituto Lombardo di Scienze e Lettere. 



Rendicouti. Ser. II. XLII, 16-20, XLII, 16. 1910. 

 R. Osservntorio Astronoiuico di Brera. 



Pubblicazioni. XL VII. 1910. 

 Societa Italiana di Scienze Naturali e del Mnseo Civico. 



Atti. XLVIII, 4-L, 1. 1910-11. 



Milwaukee. — Public Museum. 



Annual Report. XXVII-XXXVIII. 1909-10. 



Bulletin. I, 1. 

 Minnesota. - Geological and Natural History Survey. 



Botanical Series. Report of Survey. V. 



Botanical Studies. IV, 1, VIII; Ser. II, 1-6; Ser. Ill, 1-8. 



Plant Studies. I-IV. 



Bulletins. 1, 2, 5, 8, 10. 



Zoological Series. II— IV. 



MissovRL—B ota'fiical Garden. 



Annual Report. XXI. 1910. 



MoDENA. — R. Accademia di Scienze, Lettere ed Arti. 



Memorie. Ser. II, T. XII, 1, 1896; Ser. Ill, T. VIII. 1910. 

 Societa dei Naturalisti e Mafematici. 



Annuario. II-VI, VII, 2-4, XU, 3-4, Ser. II, T. XIV. 



Atti. Rendiconti. Ser. Ill, T. VII, 2; Ser. IV, T. Ill, 1-2, 



VI, XI and XII. 



