Repository: UIHistories Project: Board of Trustees Minutes - 1880 [PAGE 107]

EXTRACTED TEXT FROM PAGE:

105 were shipped to the laboratory at the expense of the Board, who also paid the expenses accruing to the department by the use of chemicals and apparatus. The results of the analyses are as follows:

Amount of organic matter in 1.000.000 parts of waier Potassium permanganate required to oxidize the organic matter in 1,000,000 parts of water Amount of organic matter in 1,000,000 parts of water. . Potassium permanganate required to oxidize the organic matter in 1,000,000 parts of water Specimen of water..

1 2 3 4 5 6 7 8 9 10 .

; 18.08 13.14 25.44 22.55 204.14 562.03 38.37 41.27 9.96

ii 12

13 14...

.. ..

L L

15 16 17

18 19 20 21 22 23 24 25 26 27 28 29

L L L

|.. 6.44 8.35 8.62 23.50 27.42 30.03 15.25 19.07 21.80 14.48 14.16

' '

96.40 77.40 95.69 83.40 504.00 1,034.00 109.00 113.00 50.80 7.19 28.13 29.44 33.66 35.74 199.52 12.00 12.06 23.55 24.75 32.11 33.15 98.08 105.47 116.54 50.65 73.34 83.84 55.69 64.46

1 1

30 31 32 33 34 35 36 37.. 38 39 40 41 42 43 44 45 46 47 48 49 50. 51 52 53 54 55 56 57

Specimen of water..

! 1

29.99 26.15 11.99 32.98 9.80 19.07 19.07 86.62 11.98 26.15 26.69 14.51 22.57 10.32 6.45 14.18 22.57 47.10 26.07 54.51 94.80 80.58 31.60 30.33 8.21 53.72 26.54 5.68

1

115 34 100.00 46.11 126.84 41.54 73.34 73.34 333.15 45.31 100.58 102.54 55.81 86.81 39.69 24.81 54.54 86.81 181.15 ' 100.27 209.65 364.61 309.92 121.24 116.65 31.60 268.60 132.70 28.40

NOTES

ON ABEAGONITE.

BY HENEY A. WEBER, P H . D.

Mr. G. A. Wild, formerly of the Natural History Department of this Institution, on his return from a western trip, presented the writer with several specimens of a mineral, which, on examination, was found to be arragonite. The remarkable size and form of these crystals warranted a thorough examination and description. The specimens were found in Bed Canyon, about four miles from Colorado Central Eailroad, and seven miles from Bristol, Colorado, a post-office on the Colorado Central Eailroad, thirty miles south of Cheyenne. The crystals were all more or less weathered and stained with a red ferruginous matter, which no doubt accounts to some extent for the foreign substances revealed in the analysis.