. Constructed to the design of Dr. G. F. Herbert Smith, of the Mineral Department of the Briti:>h Museum, and embodying many improvcmenls over existing t>-pes. The Mirror is adjustable in any direction. The crystal holder and attachments facilitate the measurements of the cr>'sial \nthout readjust- ment, and a lemorable pointer is provided to ensure the adjustment into the axial Une. The graduated circle of 5 inches (125 cm.) in diameter is fitted with a clamp and fine adjustment, and the Silvered Scale is divided to half-degTecs, rcadine by vernier to minutes of arc. PRICE £9 10 O J.
. Constructed to the design of Dr. G. F. Herbert Smith, of the Mineral Department of the Briti:>h Museum, and embodying many improvcmenls over existing t>-pes. The Mirror is adjustable in any direction. The crystal holder and attachments facilitate the measurements of the cr>'sial \nthout readjust- ment, and a lemorable pointer is provided to ensure the adjustment into the axial Une. The graduated circle of 5 inches (125 cm.) in diameter is fitted with a clamp and fine adjustment, and the Silvered Scale is divided to half-degTecs, rcadine by vernier to minutes of arc. PRICE £9 10 O J. H. STEWARD, Ltd. opticians and Scientijic Iitstrununt Makers to the British and Foreign Gnernnunls. 406 and 4S7 Strand, London, ' Established 1852. No\a Ready OUTLINES OF THE HISTORY OF BOTANY By R. J. HARVEY-GIBSON, , , Professor of Botany in the Universily of Liverpool. Deray 8vo, cloth. Price 12s. 6d. net. This volume attempts to present a sketch of the history of the science of Botany from the earliest times to, , the present day. The book is an expansion of a course of lectures to University students, and it is primarily adapted to meet their requirements, but it is, at the same time, presented in a form which, it is hoped, may be found acceptable to members of the general public in- terested in Botany, and desirous of making themselves acquainted with the chief landmarks in the histori- cal development of our knowledge of plant life. A. & C. BLACK, Ltd. SOHO SQUARE LONDON
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Keywords: ., bookleafnumber85, booksponsoruniversityoftor, booksubjectscience
