LEITZ MICROTOMES 



To meet the ever-increasing demand we tave instituted a special department for the manufacture 

 of Microtomes, and by the aid of experienced meohanics-and the best modem machinery, we are able 

 to produce instruments of the utmost precision and fullest possible value. 



THE BASE SLEDGE MICROTOME. 



All Microtomes hitherto constructed have proved more or less unsatisfactory when employed in 

 research requiring a minimum thickness of section, or a section of average thickness from tough 

 material, due to want of rigidity in object holder, knife holder, or both, and consequent lack of 

 uniformity in the sections. 



The Base Sledge Microtome has been designed to give maximum rigidity with reasonable size and 

 weight, and constitutes an entirely new departure in microtome construction. It will be found free 

 from those defects arising from want of rigidity, and is on that account suitable for the most 

 exacting work. 



Further particulars post free on request. 



MICROTOME KNIVES 



Made of the Yery finest English Steel. 



We have recently completed arrangements for the manufacture of Microtome Knives in Sheflield, 

 which, we venture to say, are of a better quality than that hitherto proem-able. 



SIZES AND PRICES: 

 4i ins. (12 cm.) . . 12/6 I 8 ins. (20 cm.) . . 25/- 



6i „ (16 „ ) . . 16/6 I 9i „ (2i „ ) . . 30/- 



3| ins. (8^ cm.), Razor pattern, 3/- 



In addition to supplying, we are prepared to undertake the resharpening of Microtome Knives 

 at moderate charges. 



Also Microscopes for all grades of work, Photo-micrographic Apparatus, Universal 

 Projection Apparatus, etc. 



E. LEITZ, OXFORD HOUSE, 9, OXFORD ST., LONDON, W. 



Crown 4to, Cloth, gilt extra, Pp, H4, Price tOs, 



A 



Bird Collector's Medley 



BY 



E. C. ARNOLD, M.A. 



^ With Twelve full-page Coloured Illustrations and Eight Un- 

 coloured, from the Author's Drawings. Illustrated in the Text 

 by Twenty Process Blocks. 

 ^ A Book for Amateur Collectors and Shore- Shooters. 



t^IRDSNESTlNQ & BIRD=SKINNING. A Complete 



*-^ Description of the Nests and Eggs of Birds which Breed in Britain, 

 by Edward Newman. — Second Edition, with Directions for Collecting and 

 Preservation ; a Chapter on Bird-sldnning ; and Description and "Woodcuts of 

 the Instruments necessary to the Collector. By Miller Christy, Cloth extra, 

 Fcap 8vo. Price Is. Postage 2d. 



London: WEST, NEWMAN dc CO., 54, Ration Garden, E.C. 



