CHEMISTRY, MINERALOGY; 
CONTENTS OF THE PLATES (I. Nos, 80—53) 
TO 
[Including the translation of German words and phrases in the same.] 
*, The references for explanations of the subjects are to the bottom paging of the text. 
PLATE 30. 
. 1. Ground-plan of the chemical labora- 
tory at Giessen, 
2. Perspective view of part of the ana- 
lytical laboratory at Giessen, 
3, 3a. Portable wind furnace, 
4, 5. Portable distilling pia 
6, 7. Fixed furnace, : 
8, 9. Sand bath furnace, : . 
10. Small table for raising or lower- 
ing receivers, 
11, 12. Small dlembic, : 
13. Pharmaceutical steam apparatus, 
14-20. Do. with its utensils, 
21, 22. Crucible furnace, . 
23. Tongs for handling hot ot eruetbles 
24. Splitting iron, , 
25, 26. Retorts, 
97-99. Globes or matrasses, 
30-34. Hessian crucible, . 
35, 36. Evaporating dishes, © 
37-41. Thermometers, 
42. Separating funnel, 
43. Bent tube with bulb, 
44,45. Walter’s safety tube, 
46. Filtering funnel, 
47. Separating funnel, 
48. Special funnel, 
49. Washing bottle, 
50. Measure, 
51-54. F lorentine flasks, . 
55. Pneumatic tub, , 
56, 57. Wolff apparatus, ; 
58, 59. Gasometer, . . 
60, 61. Davy’s apparatus for inves- 
tigating earths, . 
62. Apparatus for generating prussic 
acid, 
63. Apparatus for producing ‘small 
quantities of illuminating gas 
from various substances, 
64. Argand’s oil lamp, : 
65-68. Pharmaceutical extract presses, 
69-73. Chemical balance, ; 
PLATE 31. 
. 1,2. Oxy-ethereal lamp, . 
3. Distilling apparatus, 
4, 5. Gasometer, 
G, hy Apparatus for rendering carbonic 
acid liquid, ; ; 
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PLATE 31—(Continued.) 
Fig. 8. App’s for obtaining phosphorus, 
6é 
9. Furnace for obtaining caustic soda, 
10. Furnace for heating matrasses, 
11. Berzelius lamp, . 
12. Triangle of iron wire, 
13. Apparatus for obtaining the pase- 
‘ous elements, : 
14. App’s for obtaining chlorine, 
15-23. Drying apparatus, 
24. Air pump, 
25. Calcium tube, . 
26. Chloride of calcium tube, 
27-29. Combustion tubes, 
30-32. Combustion furnace, 
33. Apparatus for elementary analysis 
with application of oxygen, 
34-38. App’s for determining the 
nitrogen in organic  sub- 
Stanees, . 
39. App’s for filling the potash ap- 
paratus, 
40, 41. App’s for determining the 
specific gravity of vapor, 
42. Muffle furnace, . : é 
43. Cupel, : 
44. Muffle, . 
45,46. Apparatus for 
carbonic acid gas, Y 
47. 'Two-branched tube for waching 
precipitates, 
48, 49. Washing bottles, . 
50-52. Filtering agpeees, 
53. Suction tube, 
. Washing bottle, 
. Galley furnace, . 
. Gas generator, 
. Crucible, . 
. Apparatus for ascertaining the 
amount of pure metal in 
oxydes, 
. Davy’s safety lamp, 
. Apparatus for cee oxygen, 
. Safety tube, . 
63. Blowpipe, 
. Iron pincers for handling heated 
vessels, ¥ 
. Apparatus for obtaining nitroge- 
nous substances from organic 
matter, : é 
. Eudiometer, . ; : 
" generatin a 
AND GEOLOGY. 
