LXXXIII 
Mexico. Observatorio astronomico nacional: Trabajos del estable cimento Julio 1899 — Dec. 1901. 
Memorias y revista di la sociedad cientifica „A NT0NI ° Alzate“. T. XIII N. 3/4, 5/6; 
T. XY N. 11/12; T. XYI N. 1—5/6, 1901, T. XYII N. 1—6; T. XYIII N. 1, 2. 
T. XIX N. 1. 1902. 
Boletin del instituto geologico de Mexico. Num. 15. 1901. 16. 1902. 
Boletin mensual del observatorio raeteorologico central. 1901 Julio — Octob. Diciembre 
1902. Febrero. 
Minnesota. Zoolog, ser. N. IY of the reports of tlie geolog. & nat. bist, survey. 
The collembola. 
Missomla (Montana). Bulletin of the university N. 3. Biological series Nro. 1. 1901. 
N. 10. Biolog. s. Nro. 3. 1902. N. 17 Geolog, ser. Nro. 1. 1903. 
New Haven. Transactions of the Connecticut academy. Yol. XI, p. I. 1901/3. 
New York. Annuals of the New York academy of Sciences. Yol. XIY part. I, II. 
Ottawa. Geological survey of Canada: 
1) General iudex to the reports of progress 1863 — 1884. 
2) Contributions to Canadian palaeontology. Yol. II p. II, 1900, 1902, vol. III. 
vol. IY. p. II. 1902. 
3) Catalogue of the marine invertebrata of Eastern Canada. 
4) Annual report and maps. Yol. XII. 
5) Catalogue of Canadian birds p. II. 1903. 
Philadelphia. Proceedings of the academy- of natural Sciences. Yol. IY. p. 3. vol. LIII. 
2, 3. 1901. LIY p. 1. 3. vol. LY. p. 1. 
Portland. Maine. Proceedings of the Portland society of natural history. Yol. II part. 5. 1901. 
Bochester. Proceedings of the Rochester academy of Science. Yol. 4. pp. 65 — 136. 1901/3. 
St. Louis. Transactions of the academy of Science. Yol. X N. 9 — 11; vol. XI N. 1 — 11; 
XII 1—4. 1901. 
Missouri botanical garden 13. annual report 1902. 
Tacubaya. Anuario del observatorio astronomico nacional; anno 1902 XXII. Mexico 1901; 
anno 1903 XXIII. Mexico 1902. 
Toronto. Transactions of the Canadian institute. Yol. YII, p. 2 and proceedings vol. II, p. 5. 
Tufts College Mass. Studies No. 7. 1902. 
Washington. U.-S. naval observatory: 
1) Publications II Ser. Yol. II 1902, vol. III 1903. 
2) Report of the Superintendent 30. June 1901 & 1902. 
Proceedings of the Americ, academy of arts and sc. Yol. 38, 20/21,26.1903, vol. 39,1 — 3. 
Smithsonian Institution : 
1) Miscellaneous collections 14, 74, 1312 — 14. Yol. XLII. XLIII. 
2) Miscellaneous collections 1372 (The internacional exchange Service) 1902. 
3) Miscellaneous collections 1376 (List of publicat. 1846). 1903. 
4) Annual report of the board of regents for 1901. 
5) Annual report for 1900 and report of the U.-S. National Museum and N. 1259 
(List of observatories). 
6) Proceedings of the U.-S. National Museum. Yol. XXII. 1900, vol. XXIII, 
XXIY, XXY. 
7) Bulletin of the U.-S. National Museum N. 39. 50. 51. 52. 
8) Contributions to knowledge 1309. 1373. Hodgkins fund. 
Memoirs of the national academy of Sciences, Yol. YIII 5, 6. 1898. 1902. 
Department of the interior, U.-S. Geological survey: 
1) Bulletin N. 177—207. 
2) 21 annual report 1899—1900 part. II— IY (with maps) YII. 1900/1. 22 
p. 1—4. 1901/2. 23. 
6 * 
