XX INTRODUCTION. 



NOTE. Operations of the following nature may be illustrated, 

 viz.: 



Organic analysis. 



Mineral analysis. 



Electrolysis. 



Water analysis. 



Gas analysis. 



Spectrum analysis. 



Methods of investigation connected with vegetation and re- 

 spiration. 



Meteorology. 



Thermometers and barometers, of special construction. 

 Anemometers, rain gauges, hydrometers, &c. 

 Self-recording meteorological apparatus. 

 Illustrations of various systems of storm signals. 

 Weather maps. 



Instruments illustrating the phenomena of atmospheric elec- 

 tricity. 



Instrument stands. 



Geography. 



Instruments used in surveying. 



Instruments used in Geodesy and Hydrography, including 

 hypsometrical instruments, tide gauges, &c. 

 Projections, maps, charts, models, and globes. 

 Deep-sea sounding apparatus. Seismographical instruments. 



Geology and Mining. 



Instruments for field and underground surveying. 



Typical collections of rock specimens, including vein stones. 



Typical fossils arranged stratigraphically. 



Maps in different stages, and finished maps. 



Geological models, horizontal and vertical sections. 



Diagrams and plates of fossils, and general geological diagrams 

 used in lecture rooms. 



Microscopic sections of rocks and minerals, and apparatus for 

 cutting such sections. 



Anemometers, water gauges, mining barometers, and thermo- 

 meters. 



Mining plans, sections, and models of workings. 



Mineralogy, Crystallography, &c. 



Goniometers. 



Apparatus for studying and exhibiting the optical characters of 

 crystals. 



