316 ANNUAL OF SCIENTIFIC DISCOVERY. 



the 19th of April, had at lOh. 33m. 13s. mean Marseilles time, 

 the following position: Right ascension 12h. 2m. 39.22s. North 

 declination 6 o(X 38. 8". Its horary motion has been determined 

 as follows: In right ascension, 1.76s., in declination -{- 2.20s. ; its 

 magnitude is between 12 and 13. M. Borelly had previously dis- 

 covered 2 planets, bearing the numbers 91 and 99, in the system 

 of asteroids revolving between Mars and Jupiter. The 91st has 

 now received the name of Egina, the 99th that of Dike. Nature. 



NEW COMETS. 



A new comet was discovered at the Observatory of Marseilles 

 on the night of the 28th of August, by M. Coggia. The positions 

 of the comet are given in the " Comptes Rendus" of Sept. 5, 

 1870. Winnecke discovered a new telescopic comet at Carlsruhe, 

 on the night of the 29-30 of May. The position obtained by him 

 for May 30 is as follows: M. T. at C. 14k. 13m. 34s. ; R. A. Oh. 

 50m. 9.55s. ; Decl. -f- 28 52' 18". 



STORMS ANNOUNCED BY TELEGRAPH. 



The following bill was passed in the U. S. House of Repre- 

 sentatives Feb. 2, and in the Senate Feb. 4 : *' Be it resolved, etc., 

 That the Secretary of War be and he hereby is authorized and re- 

 quired to provide for taking meteorological observations at the 

 military stations in the interior of the continent, and at other 

 points in the States and Territories of the United States, and for 

 giving notice on the northern lakes and on the sea-coast, by mag- 

 netic telegraph and marine signals, of the approach and force of 

 storms." Editor. 



METEOROLOGICAL. 



Professor H. H. Hildebrandson, of the University of Upsal, in 

 Sweden, has prepared 4 synoptical meteorological maps, which 

 contain several features of scientific interest. It is generally 

 known that a fall of the barometer is usually followed by an in- 

 crease of heat, and vice versa. But in Sweden, from observations 

 taken from Lapland to Upsal, the barometer and thermometer 

 frequently show results quite contrary to the general experience 

 of more southern latitudes ; the barometer often falls considerably, 

 while during the long winter nights of this region the thermome- 

 ter generally remains stationaiy, and when storms are prevalent 

 invariably falls along with the barometer. 



Experience shows that in those regions an intimate relation 

 exists, not only between the variations of the pressure of the 

 atmosphere and those of the direction of the wind, but also be- 

 tween the movements of the barometer and thermometer during 

 serious atmospheric perturbations. The dampness of the atmos- 

 phere being much greater in the south-east part of the territory 

 visited by a violent storm than at the opposite extremity, it is easy 



