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CONTENTS.

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23. Berzelius's Analysis of Platina
Ores . . . . . . .

24. On the Specific Gravity of
Alloys, &c. . . . . . . . . .

25. On a peculiar Principle in
Blood, &c. . . . . . . .

28. Preparation of Morphia, without

the use of Alcohol . . . 180

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Acid . . . . . . . ib.
30. Glaucic Acid . . . . . 191

31. On the Formation of Acids in

Vegetables . . . . .
32. Plumbagine, a new Vegetable
Substance . . 192

. 184
185
. . . . . 187
26. Preparation of Hartshorn Jelly 188
27. Braconnot's Indelible Ink . ib.

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ib.
ib.
163
ib.
ib.
167

II. CHEMICAL SCIENCE.

1. Application of a high Tempe-

rature to the Evaporation of

Liquids . . . . . . . . . . . 172

2. On the specific Heat of Gases ib.

3. Artificial Preparation of lee ib.

4. Odoriferous Lamp . . . . . 173

5. Electricity of the Solar Rays ib.

6. Atomic Weights of Iodine and

Bromine . . . . . . 174

7. Chloride and Iodide of Nitrogen 175

8. Action of Iron on Ammonia . ib.

9. Effect of Muriatic and Sulphuric

Acid on Hydrocyanic Acid . 176

10. Phosphorus in Vacuo . . . ib.

11. On the composition of Phosphu-

retted Hydrogen . . . . . ib.

12. Combustibility of Carbon in-

creased by Platina and Copper 178

13. Carbazotic Acid and Carbazo-

tate of Lead . . . 179

14. Decomposition of Sulphates in

Water by Organic Matters . 180

15. Instantaneous Light Apparatus ib.

16. On the Analysis of Borax . ib.

17. Sulphuret of Silicium . . 181

18. On the Production of Artificial

Ultramarine . . . . 182

19. Adulteration of Chromate of

Potash; its Detection . . ib.

20. Sympathetic link . . . . ib.

21. On the Detection of small

Quantities of Mercury . . 183

22. On the Coloration of Golden

Articles of Jewellery . . ib.

33. Preparations of Oil in difierent

Oleaginous Plants . . . ib.

34. Colouring Matter of Lichen

Rocella . . . . ib.

. 193

35. Bark of the Soap Tree .

36. Chemical Analysis of Green

Oranges - - - - -

37. Chemical Analysis of the Mine-

ral Waters of Gastrin . . 194

38. Analysis of Ipecacuanha Branca,

Root of the Viola Ipecacuanha ib.

39. Chemical Examination and Ana-

lysis of the Flowers and Leaves "

of Yarrow . . . . . 195

40. Researches respecting Platina 196

41. Crystallization of Sulphated Iron 197

ið.

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