04 A dvertisements. 



MICROSCOPIC OBJECTS. 



. s d. 

 Thin Sections of Fossil Y^oods, exoginous, cut in three 



directions 10 6 



Ditto ditto, eudoginous, two ditto 7 6 



Longitudinal and Transverse Sections of Fossil Teeth ...... 7 6 



Ditto ditto, recent of the horse, elephant, sheep, ox, dog, 



fishes, etc 8 



Thin Sections of Recent and Fossil Bones 



Ditto ditto, of Fossil Woods in great variety 



Sections of Flint, containing xanthediiea, etc each 046 



Ditto of Oolites, from various localities from each 



Sections of Flint containing Sponge 



Ditto ditto Fossil Infusoria 



Ditto ditto Fish Scales. 



Series of Six Double Glass Slides, containing 18 sections of 

 the following woods, oak, ash, elm, willow, beech, and 



horse chesnut, in case 10 6 



Do. Twelve ditto, witli 36 Sections, each slide containing 



three different cuttings 1 



Series of Six Objects preserved in Canada Balsam, in case. . 12 



Ditto of Twelve, ditto ditto 1 



Series of Six Test Objects, including 



incase 7 6 



Ivory Slides, with four opaque objects on each, from per doz. 18 

 Ditto ditto, with four transparent objects on each . .from 0150 

 Series of forty glass slides, each contaning a different object 



in leather case 010 6 



Ditto common, in paper case 7 6 



Preparations of Insects in Canada Balsam, showing the 

 entire respiratory system, and the modifications for 



terrestrial and aquatic habits 



Ditto ditto, showing Digestive System 



Ditto ditto, showing Nervous do, 



Injected Lungs, Vessels, etc. etc. 



