SCHOOL APPARATUS. 287 



and tubes, arranged in a tray, $6 to $7 50 ; Glass Alembics, $1 to $2. 

 Twelve 6-inch Test-Tubes, in mahogany polished frame, $1 50. 

 Marsh's Arsenic Apparatus, $2 50. Bulb-Tubes, 37 cents ; two 

 Bulb-Tubes 50 cents. Drying-Tubes, 37 to 75 cents. 



Chemical Materials on land, and furnished to order at regular 

 prices. 



SET OF PHILOSOPHICAL APPARATUS. PRICE $500. 



1 . Set, including Motion, Mechanics, and Surveying Instru- 



ments $72 00 



2. " " Optics, Telescope, Solar Microscope, Ma- 



gic Lantern, &c. / - - - 163 00 



Air-Pump and Apparatus - - - - 42 00 



Condensing Pump - - - - 13 50 



Hydrostatics and Hydraulics - - - 45 00 



Electrical Machine and Apparatus - 31 50 



Magnetism and Galvanism - - - 52 00 



Grove's Battery and Apparatus - - 18 00 



Chemical Apparatus - - - - - 47 00 



10. A Barometer and Thermometer, $10; Hygrometer, 



$3 50 ; Rain-Gauge, $2 50 1600 



$500 00 



APPROVED SET OF PHILOSOPHICAL APPARATUS. 

 PRICE $250 00. 



Being the same as the above $500 Set, with the omission of some of 

 the more costly articles. 



1. Set, without Quadrant, Surveyor's Compass, and Chain - $37 75 



2. " " Telescope, Solar Microscope, and Magic 



Lantern and Sliders - - - - 37 00 



3. " Complete 42 00 



4. " " 13 50 



5. " without Lifting and Forcing-Pumps, Archimedes 



Screw, Barker's Mill, Spouting and Pressure of 

 Fluids 16 00 



6. " Complete 31 50 



7. " without Telegraph, 3 Magnetic Engines, and Galvan- 



ometer 24 50 



8. " Complete 18 00 



9. " without the seven last instruments in the list - - 29 25 



$25000 



These Sets may be further reduced, added to, or alterations made, 

 to suit the purposes of the institution using the same, and it will be 

 found, on examination, that there has been no sets of as good quali- 

 ty, or embracing so many important instruments, offered at as low a 

 price. 



No extra charge but for cost of packing-boxes, about $5 00. 



