XVi 
CONTENTS. 
Plate 17—(Continued.) 
Fig. 5-21. Illustrating the theory of 
strength and stress of ma- 
terials, : : . 191— 
22. Ill’g the theory of uniformly vary- 
ing motion, 
23. Iil’g the theory of unequably ac- 
celerated motion, 
24. Ill’g the influence of gravitation 
on the motion of projectiles, 
25-20. Ill’g the theory of projectiles, 
29. Ill’g the centrifugal force, . : 
30. Ill’g the lateral pressure of 
moving liquids, . : 
31-33. III’g the velocity of efflux, 
34. Ill’g the forcing pump, 
35. Prony’s swimmer, a contrivance 
to regulate the velocity of 
efflux, . ; 
36. Ill’g the hydraulic ram, ; : 
37, 38. Ill’g the ballistic pendulum, . 
39, 40. Valve and parachute of the 
Hampton balloon, 
41. Henson’s flying machine, : 
42-48. Illustrating the pneumodrome 
of Partridge, ‘ 
PLATE 18. 
1-8. Illustrating the pressure of 
liquids, . 4 
9,10. ibe. the law of Archimedes, 
11. The Cartesian devils, 
12-14. Hydrostatic balance, 
15. Nicholson’s areometer, 
16. The scale areometer, 
17-19. Illustrating capillary attrac- 
tion, 
20-30. Il’g phenomena of attraction 
of liquids and solids, . 
31. Dutrochet’s endosmometer, 
32. Common barometer, . 
33-35. Gay Lussac’s eyphon ‘baro- 
meter, : 
36-38. Fortin’s barometer, 
39-41. Arago and Dulong’s apparatus 
for proving Mariotte’s law, 
42. Kopp’s differential barometer, 
43. Kopp’s volumeter (Quoted in the 
text as fig. 93), . : 
44. Gay Lussae’s hand air-pump, 
45, 46. Larger air-pump, 
A7. Two-cylindered air-pump, . : 
48-50. Babinet’s cock for obtaining 
the greatest rarefaction, 
51-53. The condensing pump, 
54-56. The syphon, : 
57, 58. Apparatus involving — the 
theory of the syphon, 
59. Cup of Tantalus, 
60. Fountain involving the syphon, 
61. Hero’s ball, 3 é 
62. Intermitting spring, 
63, 64. Hero’s fountain, 
65-71, Hydraulic press, 
72. Apparatus to measure the pressure 
of falling water, 
73. Ordinary air balloon, 
74. Marey Monge’s copper balloon, . 
93 see 43. (The figure is marked 93 
by mistake of the engraver.) 
PAGE 
199. 
201 
201 
204 
204 
204 
221 
220 
234 
220 
222 
211 
237 
238 
238 
PAGE 
PLATE 19. 
| Fi ig. 1. Gasometer, : ‘ . B30 
As Be Cylindrical Bowers. 5 . 240 
“« 4 Water regulator, : : ee 
«5. Wind measurer, . : : » 24 
«6. Common bellows, , : . 240 
“« 7. Mercurial thermometer, : 259 
«* 8. Apparatus for measuring the ex- 
pansion of solids, : . 268 
ee OST. Do; +) for higher tempera- 
tur_s, 5 260 
“12. Metal, or quadrant thermometer, 262 
en ae: Breguet’s thermometer, . . Bae 
«14. Air thermometer, : ; . 263 
«* 15. Pneumatic apparatus, : 264 
16. Illustrating the relative expansion 
of mercury, water, and 
alcohol, . : . 263 
17. Ill’g the laws of vaporization, . 265 
18. Ill’g the tension of vapor in un- 
equally heated places, . 266 
19, 20. Apparatus for measuring the 
elasticity of vapor, . 266 
21. App’s for ascertaining the density 
of watery vapor, : 267 
22. App’s for mixing vapors with 
gases, ‘ 269 
23. App’s for measuring ‘the tension 
of this mixture, . 269 
24. App’s for boiling water by the 
condensation of vapor, . Bi 
25. Papin’s digester, ; ; .) ae 
26. Papin’s first steam- -engine, . . 273 
27-34. Watt’s steam-engine, . 273 
35. Illustrating the transmission of 
heat 27% 
36. Rumford’s differential thermome- 
ters, +: 78 
Sh, ty: Melloni’s thermo- multiplier, 279 
38-40. Locatelli lamp, &e., . 279 
41. Illustrating the refraction of heat 
rays, : 281 
42. Apparatus for ascertaining the 
laws of cooling, : 281 
43. Calorimeter of Lavoisier and 
Laplace, . 276 
44, 45. Apparatus for determining the 
specific heat of bodies, . 276 
46. App’s for determining the specific 
heat of gases, . 277 
47. Cooling tube, . F , : Oye 
48. Cooling vessel, 272 
49. Apparatus for measuring latent 
heat, : 272 
49, a. Illustrating the transmission of 
sound, ; : . 246 
50. Savart’s monochord, : . 253 
51, 52. Vibration of strings, ‘ 244 
53-58. Illustrating the construction 
of organs, . 250 
59-61. Cagniard de la Tour's system 
of determining the number 
of vibrations in a tone, . Bol 
62. Apparatus for causing plates to 
vibrate, . 244 
63-90. Figures produced by the vibra- 
tion of plates, belts, &c., 245, 257 
91. Apparatus for producing tones 
by the combustion of ori 
gen gas, . ; 250 
