APPARATUS 



Fob the Microscopes Nos. 1 and 2 



;0f lower price, on account of their more simple adaptation to those 



instruments). 



£ s. d. 

 Brasswork of Achromatic Condenser, with adjustments . . .10 

 Combination of Lenses for ditto . . - from £1. 10s. to 4 



Wenham's Parabolic Reflector, and fittings 112 6 



Amici's Prism for oblique light 1 10 



Polarizing Apparatus from ^62. 10s. to 3 15 



Bundle of Thin Glass for polarizing by reflection or transmission . 110 



ADDITIONAL APPARATUS FOR THE MICROSCOPES IN GENERAL. 



Extra Eye piece from 13s. to 



Indicator to Eye -piece 



Erecting Glasses, for varying power, and for dissection . 

 Brasswork for Achromatic Condenser . . from 10s. 6c?. to 



Combination of Lenses for ditto from 



Right-angled Prism 



Nachet's Prism 



Side Condensing Lenses from 12s. to 



Side Silver Reflector ... 



Polarizing Apparatus, with selenite . , 



Double Image Prism, with fitting to eye-piece .... 

 Two ditto, ditto, with selenite, and brass plate with holes 

 Crystals to show rings round the optic axis, fitted to eye-piece, each 



Tourmalines . . . from 



Wollaston's Camera Lucida, and fittings .... 



Steel Disc, ditto . . . . 



Micrometer for Stage, mounted in brass 



Ditto for Eye-piece, with fittings and adjusting serew 



Three Dark Wells, and holder 



Compressorium from 7s. 6d. to 



Screw Live Box . . . . from 6s. 6d. to 



Glass Trough from 6s. to 



Best Argand Lamp, with blue chimney 



Small Camphine ditto, on improved principle 



Iron Table, with revolving top for the Microscope .... 



17 

 5 

 

 10 

 10 

 10 



18 



1 1 



1 1 



2 10 

 15 

 2 2 

 10 



10 



1 

 15 

 10 



MICROSCOPIC OBJECTS. 

 , Recent and Fossil - — 

 Desmidiese and Algse ; Diatomaceae, recent and fossil ; Spicules 

 and Gemmules of Sponges and Gorgonias; Zoophytes,Bection3 

 of Shells and Echinus Spines; Entomological Preparations 

 Hairs and Feathers; Anatonlical Preparations, Sections of 

 Bones and Teeth ; Injected Preparations; Mineralogical and 

 Polarisoopic Objects. 



CABINETS FOR OBJECTS. 

 In which the Specimens lie flat, and with porcelain Labels to the Drawers. 



To hold 1000 objects from £6 6s. to 7 



Ditto 750 ditto from £5 to 5 15 



Ditto 600 ditto .... from M 10s. to - 4 i 



CABINETS MADE TO ANT SIZE AND OF EVERY DESCRIPTION. 



INSTRUMENTS USED IN PREPARING OBJECTS. 



Materials used in Mounting Objects. 

 Woodward's Table and Hydro-oxygen Polariseope and Microscope. 



Just Published, Second Edition, revised by the Author, 



A PAMILIAE INTEODUCTION TO THE STUDY OF POLAEIZED 



LIGHT, 

 By Charles Woodward, Esq., F.K.S., &c. 



