448 Miscellaneous InieUigence. 



right ascension of sun, moon and planets oLserved Avith tlie \yest transit 

 instrument; declination and seniidianieters of the same as observed 

 Avith the circles, and catalonfue of stars observed in 1848. 



13. Annals of the Astronomical Observatory of Harvard College. Vol. 

 IT, Part L 136 pp., 4to, with numerous plates, Cambridge, 1857, 

 This part of the Cambridge Observatory Annals relates wholly to Saturn, 

 and contains the observations made at the observatory by Wra. C. Bond, 

 Director of the Observatory, The general results have been before the 

 public for some time, and their high merit is well known. The observa- 

 tions are brought down to May of the present year. The series of plates 

 contain 120 figures representing the appearances of Saturn and the ring 

 at as many different times of observation. 



14. Patent Office Report^ 1856, Charles Mason, Commissioner of 

 Patents. Volun:ies'I, II, III, 8vo. Mechanics and one volume on agri- 

 culture. — The third volume, of 01)0 pages, is made up wholly of plates of 

 the various machines, etc. patented at the Patent Office, descriptions of 

 which are sfiven in the first and second volumes. The airricultural vol- 

 ume contains many practical papers on agriculture, agricultural products 

 and related topics, and is illustrated by several plates, 



15. Illustrated Annual Register of Rural Affairs for 1858, with 130 

 engravings, Number four, by Luther Tucker & Son, Albany, 1858. Con- 

 tains, besides other rural matters, neat plans of houses ixnd grounds, trel- 

 lices, etc. 



16. Illustrated Scientific and Descriptive Catalogue of Achromatic 

 Microscopes manufactured by J, <$; W. Grunow £ Co.^ New Haven, Conn, 

 New Haven. 8vo, pp. 104.^-This work deserves honorable mention as 

 a treatise of no small merit upon the general principles of optics Involved 

 in the construction of the microscope. This subject is considered under 

 the following heads. Chapter L Theory of the Microscope. Chapter IL 

 Mechanical structure of the Microscope. Chapter III. Accessory apparatus. 

 Chapter IV, Polarized light and its application to the Microscope. Chap- 

 ter V. Practical directions. Eight distinct forms of the microscope, all 

 original with these artists, are described and figured wnth their accessory 

 apparatus. These are, No. 1, Educational microscope. No. 2, Students 

 microscope. No. 3, Student's microscope. No. 4, Student's larger mi- 

 croscope. No. 5, Another form of student's microscope. No. 6, Portable 

 microscope. No. 7, Large microscope. No. 8, Simple form of inverted 

 microscope; to which may be added the more complete inverted micro- 

 scope. The figures in this treatise are all original drawings by Saiuord 

 from the instruments, and are remarkably good examples of the xylo- 

 graphic art. These artists have attained a most enviable perfection in all 

 tJie nicer details of construction in the mechanical portion of the instru- 

 ment, wlnle in the optical department they have also obtained the nipst 

 satisfactory results. There are points of great interest to the microscopist 

 discussed in their Catalogue which we may hereafter transfer to our pages. 

 Such is § 124, on the " Qualities of Object-glasses:' Several novelties ot 

 construction are also for the first time here described and figured. The 

 book is beautifully printed, and will be sent by post to any address upon 

 the transmission of thirty cents in stamps to the artists. 



