17 



Microscope No. 12, Mr. Legrand. 



Scale of Eel. 



Sjnapta vittata, from Eed Sea. 



Foraminifera, from Anvers. 



Coscinodiscus, from Algiers. 



Diatoms, from Ichaboe Guano. 



Foraminifera (Fossil), from Oran, Algiers. 



Photographs. 



Microscope No. 13 (Smith and Beck's Binocular), Mr. Stone. 



Opaque Objects, Shells of Foraminifera, Mag. 30 to 40 dimi. 



Crystals of Metallic Ores, ditto. 



Fructification of Fern, ditto 60 ditto. 



Leaf of Lily to show Stomata, ditto 60 ditto. 



Leaves of Sage, Thyme, and Mint, shewing oil globules, 



ditto 60 ditto. 

 Lung of Cat, injected, ditto 60 ditto. 

 Human Skin, ditto, ditto 60 ditto. 

 Section of Hoof of Ehinoceros (by Polarized Light), ditto 



60 ditto. 

 Hair of Elephant (ditto), ditto 90 ditto. 

 Spicules of Gorgonia (ditto), ditto 90 ditto. 

 Crystals of Bichromate of Potassa (ditto), ditto 90 ditto. 



„ Sulphate of Copper (ditto), ditto 90 ditto. 



„ Salicine (ditto), ditto 90 ditto. 



Spinnerets of Spider, ditto 350 ditto. 

 Hair of Mouse, ditto. 

 Scales of Moth, ditto 750 ditto. 



Microscope No. 14, Mr. Roblin. 



Circulation of Blood in Web of Frog's foot, ditto 360 ditto. 

 Sections of Colonial Woods (6), ditto 80 ditto. 



