ASTRONOMY. 105 



iuasmiicb as the Diirchmusterung of Professor Scboiilield comprises all 

 the southern stars within this region, while accurate determinations of 

 the brighter ones will have been made in the re-observation of Lalaude's 

 stars now nearly complefed at the Paris Observ^atory. 



Pulkowa catalogue of 3,542 stars for 1855.0. — Volume viii of the Pul- 

 kowa Observations is to contain two catalogues of stars deduced from 

 observations made with the meridian circle from 184() to 1809. The first 

 of tliese — the one that has just been published — contaiiivS, with the ex- 

 ception of the Pulkowa fundamental stars (observed with the trausit 

 instrument aud vertical circal), all Bradley's stars between the north 

 pole and 15° south declination, and also a comparatively small number 

 of other stars down to the sixth magnitude, inclusive, given in the 

 Uranometria Nova of Argelander, in the same part of the sky. A few 

 fainter stars have also been taken into the catalogue. The whole work 

 has been in the hands of Dr. Backlund. (Bull, astron., November, 188(3.) 



Kamh catalogue of '■'• Nachrichten'''' stars for 1855.0. — " Dr. N. M. Kam 

 of Schiedam has published in Verhandelingen derKoniuklijke Akademie 

 van Wetenschappen, Deel. 24 (Amsterdam), a star catalogue compiled 

 from the places of stars deterjniued by meridian observations, which 

 have been extracted from volumes 1 to GO of the Astrouomische Nach- 

 richten, and reduced to the epoch 1855.0. The positions of the stars 

 contained in this catalogue were determined in connection with obser- 

 vations of i^lanets and comets, and it was in compliance with Arge- 

 lander's express desire that the work of collecting them and reducing 

 the positions to a common epoch was commenced by Hoek, then di- 

 rector of the Utrecht Observatory. Dr. Kam, who was Hoek's assist- 

 ant, continued the work after the death of the latter, and has at length 

 been able to publish his results. The principal catalogue contains the 

 completely determined places of 4,350 stars, and is followed by two 

 subsidiary catalogues, the first giving the places of 236 stars, aud the 

 second those of 335 stars ; all of the latter, however, are incomplete, 

 i. e., the place is given in one element only. The catalogues are followed 

 by a comparison of the places, of the stars contained in them with 

 their places as given in the Bonn Durchmusterung, or, for stars south 

 of — 2° declination, with other authorities. Notes on proper motions, 

 corrigenda, etc., are appended, which are of considerable interest aud 

 value." (Nature, June 3, 188G.) 



Romberg's catalogue of-' Nachrichten'''' stars (1855.0). — Herr Romberg, 

 of the Pulkowa Observatory, has compiled a catalogue of about 8,000 

 stars extracted from the Astrouomische Nachrichten, volumes G7 to 112, 

 and his work now appears as Publication xviii of the Astrouomische 

 Gesellschaft. This is a continuation of a similar compilation (Pub. viii, 

 Astron. Gesellsch.), by Scbjellerup, from the first sixty-six volumes of 

 the Nachrichten, and is prepared on much the same plan. The stars 

 have appeared in the Nachrichten as comparison stars for planets, com- 

 ets, etc., aud have been collected by Komberg and reduced to 1855.0. 



