Astronomie und Geodäsie. 



421 



6559 Annals of the Astronomical Observatory of Harvard College. Vol. XXV: Rogers, 

 W. A., Comparison of Positions of Stars between 49° 50' and 55° 10' of North 

 Declination in 1855. 0. Cambridge (Waterville) 4 893. roy. 4. 4 9 a. 382 pg. Mk. 24 



6560 — — Vol. XXIX. Miscellaneous Researches made during the years 4 883 — 93. 

 Cambridge 4 893. roy. 4. 227 pg w. 4 plate. 4 2 



6564 Vol. XXX (3 parts): Observations made at the Blue Hill Meteorological 



Observatory, Massachusetts, in the years 4 889 and 4 890, under the direction of 

 A. L. Rotch. — Clayton, H. H., and Fergusson, S. P., Measurements of 

 Cloud Heights and Velocities. Cambridge 4 890 — 92. roy. 4. 268 pg. w. 2 plates. 4 5 



8562 — — Vol. XXXI, part 2. Investigations of the New England Meteorological Society 

 for the year 1894. Cambridge 4893. roy. 4. pg. 4 64—343 with 5 plates. 42 



6563 Vol. XL, part 4. 2. Observations made at the Blue Hill Meteorological 



Observatory, Massachusetts, in the years 1 894 and 4 892, under the direction of 

 A. L. Rotch. Cambridge 4 892—93. roy. 4. 138 pg. 10 



6564 AratUS et EudoXUS. — Hipparchus Bithynus" In Arati et Eudoxi Phaeno- 

 mena commentariorum libri tres. Ad codicum fidem recensuit et germana inter- 

 pretatione instruxit C. Manitius. Lipsiae 1894. 8. 34 et 376 pg. 4 

 Burnham, S. W., Double Star Observations — see: Publications of the Lick 

 Observatory, Nr. 6568. 



6565 Delporte, A., et GilÜS, L, Observations astronomiques et magnetiques executees 

 sur le Territoire de l'Etat independant du Congo. (Bruxelles, M6m. cour. Acad.) 

 1894. 4. 11 4 pg. av. 4 planches et 1 figure. 640 



6566 Glasenapp, S. de, Observations astronomiques faites ä Abastouman (Caucase). 

 (Deuxieme Serie des mesures d'etoiles doubles.) St. Petersbourg 4 894. 4. 4 4 et 

 86 pg. 3 



6567 Haie, G. E., Spectroscopic Notes from the Kenwood Observatory. (Chicago, 

 Astron. a. Astro-Physics) 4 893. roy. 8. 6 pg. w. 1 plate. 1 



6568 Publications of the Lick Observatory of the üniversity of California. Vol. II. 

 1894. 4. 255 pg. with 1 plate. cloth. 4 6 



Cont.: Burnham, S. W., Double Star Observations made with the 36-inch und 12-inch Re- 

 fractors of the Lick Observatory from Aug. 1888 to June 1892. 

 Vol. I. 1887. with 10 plates. cloth. M. 10. 



6569 ResultS of astronomical Observations made at the Sydney Observatory, New 

 South Wales, in the years 1879—81, under the direction of H. C. Russell. 

 Sydney 1893. 8. 18 a. 124 pg. w. 1 map a. 4 plates. cloth. 5 



Cont.: Introduction i on Situation, buildings, instruments etc. of the Observatory! (w. 1 map a. 

 k pl.). — Mean right ascensions a. north polar distances observed in 1879 a. reduced to 1. January. 



6570 Roberts, J., A Selection of Photographs of Stars, Star- Clusters and Nebulae. 

 Together with information concerning the Instruments and the Methods employed 

 in the pursuit of Celestial Photography. London 1894. roy. 4. 



Rogers, W. A., Catalogue of 8627 Stars - see No. 6559. 



6571 Saporetti, A., Metodo razionale differente dagli Antichi e dai Moderni stessi di 

 approssimazione intorno alle epoche d'eguaglianza del Tempo solare al Tempo 

 medio e delle massime loro differenze. (Bologna, Mem. Accad.) 1894. 4. 7 pg. 420 



6572 Schroeder, S., and Southerland, W. H. H., Azimuth Tables, giving the true 

 bearings of the Sun at intervals of 4 minutes between Sunrise a. Sunset, for 

 parallels of latitude between 61 N. a. 61 S. inclusive. Washington 1893. 4. 

 200 pg. 21 



Correction of advertisement No. 1620. 



6573 Webb , T. W., Celestial Objets for common Telescopes. 5. edition, revised a. 

 greatly enlarged by T. E. E s p i n. Volume II. London 1894. 8. 280 pg. with 



1 map a. illustrations. cloth. 6so 

 The complete work, 2 vols., 1893—94. 250 a. 280 pg. w. 1 portrait, 1 map, 2 plates a. illustra- 

 tions. cloth. M. 12.80. 



6574 Winlock, W. C, Progress of Astronomy for 1891 and 1892. Washington (Smithson. 

 Report) 1893. 8. 94 pg. 2 



Verlag von R. Friedländer & Sohn, Berlin. 



Prof. C. F.W. Peters, Astronomische Tafeln und Formeln. 1871. XVI u. 217 Seiten, 

 Oktav. Preis 9 Mark. 



Prof. A. Sa witsch, Abriss der praktischen Astronomie. 1879. XVI u. 848 Seiten, 

 Gr. -Oktav, mit 8 Figurcntafeln. Preis 1 Mark (statt des Ladenpreises von 20 Mark), 

 Naturae Novitates. Jahrg. XVI, No. 17. R. Friedländer & Sohn in Berlin. 



