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ix

EXAMPLES FOR PRACTICE;

Being a collection of substances well adapted for exhibiting the most important blowpipe reactions.

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64. Apatite.
65. Franklinite.
66. Pitchblende.

67. Chromic iron.
68. Cerussite.
69. Malachite.

70. Stibnite.

71. Iron pyrites.

72. Copper pyrites.

73. Arsenical pyrites.

74. Speiss cobalt.

X

75. Glance cobalt.
76. Realgar.
77. Cinnabar.
78. Kupfernickel.
79. Molybdenite.
80. Berthierite.
81. Bournonite.
82. Tetrahedrite.
83. Clausthalite.
84. Nagyagite.

85. Vanadinite.

The undermentioned Firms have undertaken to keep in stock the apparatus, reagents, and substances for practice required in working through the text-book :

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Messrs. GRIFFIN & SONS, 22 Garrick-street, London.

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LETCHER BROS. & JEFFERY, Truro, Cornwall.
MOTTERSHEAD & Co., 7 Exchange-street, Manchester.
WOOLLEY, SONS & Co., 69 Market-street, Manchester.

CORRECTIONS.

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19, for "

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53, " I,
6,

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"pentoxide."

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BLOWPIPE ANALYSIS.

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