90 
Aufgelegte Schriften: 
Atti della Societä Toscana di Scienze naturali. Bd. 19, 1—4. Pisa 1910. 
Rendiconto Dell’ Accademia Scienze fisische e Mat. 3 . Ser. Vol. 16. 
Tasc. 7—9. Napoli 2910. 
Atti della reale Accademia dei Lincei. XIX. Fase. 9 — 12. XX. Fase. 
1, 2. Roma 1910 — 11. 
Bull. d. 1. Societe geologique d. Belgique. XXXVI. 1908—9. Liege 1910. 
Proceedings Acad. Nat. Sciences Philadelphia. Vol. LXII, II, 1910. 
Philadelphia 1910. 
Bull. New York public Library. XIV, 11, 12. XV, 1. New York 1911. 
Bull. Scientific Laboratories, Denison University. XVI, 1 — 3. Granville 
Ohio 1910. 
Mem. Mus. of Comparative Zoology. Vol. XL, 2. Cambridge, U. S. A. 
1911, und Annual Report 1909 — 10. 
Bull. Smithsonian Inst. No. 37, 45, 49. Washington 1910. 
Smithsonian miscellaneous Collections. Vol. 56, Nr. 11, 13, 14, 15. 
Washington 1910. 
Proc. of American Academy of Arts and Sciences, 45, 21, 46, 1 — 12. 
Boston 1910. 
Navy department, U. S. Naval obsenatory. 1910. Washington 1910. 
Univ. Studies Nebraska. Vol. X, 1. Lincoln, Nebraska 1910. 
Field Mus. Publication 145. Vol. III. Nr. 8. Chicago 1910. 
Bulletin Illinois State Laboratory. Vol. VIII, Vol. IX, 1 — 3. Daville, 
111. 1910. 
Amer. Naturalist., 44, Nr. 528. 45, Nr. 529, 530. Lancaster, Pa. 1910 — 11. 
United States geol. Surv. Water-Supply paper, 237, 239, 247, 250, 251. 
Washington 1910. 
United States geol. Surv. Bull. 425 — 427 u. 432. Washington 1910. 
United States geol. Surv. Profess. Paper, 68. Washington 1908. 
Bericht d. Kiew’schen naturf. Ges. 21, 2. Kiew 1910. 
Bull. Acad. imper. Petersbourg. 1910. H. 16—18. 1911. H. 1 u. 2. 
Travaux Mus. geol. Pierre le Grand. Tome IV, 1910, 1 und 2. Tome III. 
1909. Petersburg 1910. 
Memoirs and Proceedings Manchester literary und phil. Society. Vol. 55. 
Part I. Manchester 1911. 
Parergones Instituto geologico. Vol. III, 6. Mexico 1910. 
Archivos do Instituto bacteriologico Camara pestana. Tome III. Fase. II. 
Lissabon 1911. 
Missouri Botanical Garden. 21. Jahresbericht. St. Louis, Mo. 1910. 
