24 
En el del presente año se halla la segunda parte de la Explicación ele- 
mental de las mareas por M. P. HamT, ingeniero hidrógrafo de la marina, 
y consagrada al estudio del fenómeno local, pues el fenómeno general fué 
ya tratado en el anuario anterior. 
Agenda Oppermann á usage des ingénieurs, architectes, 
agents-voyers, conducteurs de travaux, mécaniciens, indus- 
triels, entrepreneurs. 1905.—Paris, Ch. Béranger. 417 pages. 
Este tomito se halla nutrido de un material variado é interesante re- 
lativo á geodesia, pesas y medidas, matemática, física, resistencia de ma- 
teriales, química, electricidad, comercio é industria, correos y telégrafos, 
etc. 
The Royal Astronomical Society of Canada. Selected Papers 
and Proceedings. 1904. Edited by C. A. Chant. Toronto. 1905. 
8 xxvi116 p. á plates. 
Astronomical and Astrophysical Progress during 1904 (President's 
Address, Jan. 10, 1905) —The Relation of Philosophy to Ancient and 
Modern Cosmogonies, by Prof. J. Watson.—Further Considerations on 
Aerolithes, by W. H. S. Monck.—Some New Determinations of the Re- 
flecting Powers of Glass and Silvered-Glass Mirrrors, by €. A. Chant.— 
Astrophysical Research, by W. B. Musson.—Observations on Variable 
Stars, by J. M. Barr.—Recent Lunar Photographs, by D. J. Howell.— 
Theories of World Building, by A. P. Coleman.—Confirmation of Mr. 
Barr's Observation, by P. S. Yendell.—The Energy of Stellar Collision, 
by A. W. Bickerton.—An Elliptical Solar Balo, by A. F. Hunter.—Man's 
Place in the Universe, by J. R. Collins. —The Shelburne Meteorite, by 
L. H. Borgstrom.—Magnetic Disturbances, 1882-1903, as Recorded at the 
Royal Observatory, Greenwich, and their Association with Sun-Spots, 
by E. W. Maunder.—The Total Solar Eclipse of 1905.—In Memorian: 
Arthur Harvey. 
