178 RECORD OF SCIENCE FOR 1887 AND 1888. 



Litchfield. — Dr. Peters is still at work iii)on his ecliptic cbarts; be 

 exi)ects to i-ssue shortly a secoud iiistallmejit of twenty. 



Liverpool. — The tiiiie-guii lias been lired with regularity, chronome- 

 ters tested, and meteorological observations conducted as heretofore. 



Lund. — Dr. Dun6r has continued his observatious of variable stars 

 and spectra of red stars, and with a large solar spectro8COi)e, i)rovide(l 

 with one of Eowland's gratings, he has made an important investigation 

 of the period of rotation of the sun. Photographs of the solar spectrum 

 were made as a check upon the micrometer measures. 



Lyme Regis. — See Ivousdon. 



McGormick. — The 2Ginch equatorial is still devoted chiefly to the 

 study of nebula3. Mr. Leaveuworth resigned as assistant in Septenibei-, 

 1887, to take charge of the Haverford College observatory. Professor 

 Stone expresses continued satisfaction with the electric illumination of 

 the equatorial. 



Madras. — Mr. Norman K. Pogson has published in two volumes tlie 

 results of a series of observatious of star places made with the 5.^-inch 

 meridian circle, the first volume giving, after a brief history and descnji- 

 tiou of the observatory, the "separate results" and annual catalogues 

 for 1802, 18G3, and 1804, and the second volume "separate results" and 

 anuual catalogues for 1805, 1800, and 1807. 



Mauritius. — Principal activity is in the observation of meteorological 

 and magnetic phenomena, and in the photographic record of the state 

 of the solar surface by means of the photoheliograph. 



Mazatlan {Sinaloa). — Founded in 1879 and intended ])rincipally for 

 the time service, and is supported by the department of public works. 

 Its directors have been: Ingo. Fiacro Quijano, 1879-'84; L. Gutierrez, 

 1881; F. Weidner, 1884; C. Camilla, 1885-'87; L. Acosta, 18S7. Instru- 

 ments: Meridian instrument, by Fauth & Co., aperture 0"'.07G {o inches), 

 focal length 0'".787 (31 inches); equatorial, by W. Gregg, New York, 

 0'".15 (6 inches), aperture; Trough ton & Simms altazimuth, and Negus 

 chronometer. Latitude, +23^ 11' 22".81 ; longitude, 7'' 5'» 35«.07 west of 

 Greenwich. 



Melbourne. — The mirrors of the 4 foot Cassegrainian reflector have 

 become so tarnished as to interfere materially with the observation of 

 the fainter nobuhe. The sum of $5,000 has been appropriated to enable 

 the observatory to take part in the stellar photographic scheme of the 

 Paris conference. 



Mexico. — The Central Astronomical Observatory in the city of Mex- 

 ico was founded in 1878. It is intended for purposes of instruction, 

 and esi)ecially for co-operating in geodetic work and for maintaining 

 the time-service of the capital. The principal instruments are a 

 meridian telescope, by Trough ton & Simms, of 0"'.0G9 aperture and 

 1°'.1G focus; a zenith telescope, by the same makers, of 0^.070 aperture 

 1'".22 focus ; an altazimuth, by the same, with 0'".305 (12-incli) circles ; a 

 ^mall Burow refractor, Fauth chronograph, sidereal clock by Vasquez, 



