414 SCIENTIFIC RECORD FOR 1883. 



gun. Kiel will be in the future the central office for international sci- 

 entific telegrams. 



Leipzig : The buildings and instruments have received a thorough 

 revision, in particular the meridian circle and the electric system. 

 Small planets and comets have been observed on the equatorial, and 

 since July, 1882, the sun-spot observations have been continued. The 

 first part of the publications of the observatory is prepared for publi- 

 cation. 



Leipzig (Dr. Engelmann's private observatory) : The principal instru- 

 ment is an 8-inch refractor by Alvan Clark, which has been used for 

 measures of difficult double stars. 



Milan : The 8-inch refractor has been used in observing double stars, 

 of which 426 measures have been made. The topography of Saturn, 

 Mars, and Mercury has been studied, and Professor Schiaparelli says 

 that the spots on Mercury are not so difficult to recognize as is gener- 

 ally supposed. The meridian circle has made 1,600 observations on the 

 doubles discovered by Mr. Burnham ; this work will be soon completed. 

 The observations of Derubowski are not yet ready for publication ; the 

 18-iuch refractor is in the hands of the Bepsolds for mounting and will 

 not be ready for work before the end of 1884. 



Moscow : The work of this observatory is given in vol. ix, part I, of. 

 its Annals, which is just published. 



Munich : Besides smaller instruments the observatory has a Merz 

 refractor of 10£ inches, and a meridian circle of 4£ inches aperture. 

 The buildings are being rebuilt and these instruments will be remodeled. 

 The meridian circle is in the hands of Ertel for this purpose ; the hourly 

 magnetic and meteorological observations are discontinued, but will 

 probably be resumed elsewhere. A series at longer intervals is kept up 

 to connect the new series with the old ; the Munich zones are being re- 

 duced ; Dr. Seeliger is now director of the observatory. 



Naples : A list of the publications of the observatory and of its ob- 

 servers is given. 



O'Gyalla {Hungary) : Besides miscellaneous observations 618 micro- 

 metric measures of 182 sun-spots on 151 days have been made. 



Padua : The longitudes Bome-Padua, Kome-Florence, Padua-Flor- 

 ence were telegraphically determined. The 7-inch equatorial of Dem- 

 bowski has been acquired by the observatory and will replace the 4-inch 

 equatorial made by Stark. 



Palermo : The sun-spots were drawn (scale of 0.51 meter to the solar di- 

 ameter) on 315 days ; the chromosphere and protuberances were drawn 

 on 156 days. Observations of the reversal of the Frauenhofer lines, 

 especially of 1474 K and b on 124 days. Drawings of Jupiter on 24 days. 

 Observations of three comets on 78 days. Observations of 22 minor 

 planets and of comets. A list of the publications of the observatory 

 is given. 



Potsdam : A spectroscopic examination of the stars from —1° to -\- 20° 



