538 BOLETIN DEL INSTITUTO GEOGRAFICO ARGENTINO 
23 The Republic of Guatemaia by Gustavo Niederlein. Philadelphia 
1898. 
24 The Pennsylvania Magazine of History and Biography. Vol. 
XXIII.N°. 1, 2, 3. Pennsylvania. 
25 The evolutidn of Climates by Marsden Manson. Sax Fran- 
cisco. Cal. 
96 Annual Report of the Board of Regents of the Smithsonian Ins. 
tituti6dn. Washington 1898-99, 
27 Annual Report of the United States Geological Survey to the 
Secretary of the Interior. 1896-97 Washington. 
28 Bulietin of the Bureau of American Republics. Vol. VIL Was- 
hington. 
29 Bulletin of the United States Geological Survey. N° 149 (1897); 
88 y 89 (1898). Washington. 
30 Eighteenth Annual Report of the United States Geological Sur- 
vey to the Secretary of the interior. 1896-97. Washington. 1897, 
31 Inter Continental Railway Commission-Report of Corps. T. I, II, 
III maps and profiles. Report of Corps. I, II, If text and tables. 
Condensed Report. Washington 1898. 4 } 
32 Lightning and the Electricity of the air by Alexander G, Mc. 
Adie and Alfred J, Henry. Washington. 
33 Monthly Weather Review. Vol. XX VII. Washington. 
34 Monographs of the United States Geological Survey. Washing- 
ton 1898. 
35 Nineteenth Annual Report of the United States Geological Sur- 
vey to the Secretary of the interior. 96-97—97-98. Washington. 
36 Report of the Chief of the Weather Bureau 1897-98: Washington. 
37 Report of the Superintendent of the U. S. Coast and Geodetic 
Survey. Washington. 1898. 
38 The National Geographic Magazine. Vol. X Washington. 
MEXICO 
1 Anales de la Asociaci6n de Ingenieros y Arquitectos de México. 
eo WAHL 
2 Boletin de Agricultura Mineria é Industrias, ano VIJI. N° 14 11 
México. 
3 Boletin Mensual del Observatorio Meteorolégico Central de Mé- 
xtco. Enero 4 Mayo. 
a 
