Section 15
SEC. 15. The following sums in money of the United States are hereby appropriated for the purposes named: (a) For the purchase of additional instruments and apparatus for the equipment of nine first-class stations, and for suitable shelters for the same, one thousand seven hundred and eight dollars and fifty cents. (b) For the erection of shelters and the installation of instruments for nine first-class stations, five hundred dollars. (c) For the purchase of instruments and apparatus sufficient to equip twenty-five second-class stations, for shelters for the same and for cost of installation, four thousand two hundred and fifty dollars. (d) For the purchase of instruments and apparatus sufficient to equip seventeen third-class stations, and for the installation of the same, one thousand and eighty-eight dollars. (e) For the purchase of instruments and apparatus sufficient to equip twenty rain stations, five hundred and twenty dollars.