In the Fall of 1899 the wells of the company produced 6,000,000 cubic feet per day, but during cold weather when the demand for fuel was great they dropped to 3,000,000 cubic feet, and the rock pressure which was 300 pounds in the Fall was only 200 during the winter. On July 7th, 1900, the rock pressure of the wells in the Muddy Fork field ranged from 170 to 280 pounds, indicating a considerable drop from that of the preceding autumn. The company expects to drill four additional wells during the ensuing fall (1900) in the Muddy Fork territory, and by so doing expects to keep three wells closed, and thus maintain a good rock pressure. TWELVE ADDITIONS TO THE OHIO PLANT LIST. W. A. KELLERMAN. The species named below have not been reported in the Fourth State Catalogue of Ohio Plants, in the First Annual Supplement, nor in “Additions to the Ohio Flora,” O. S. U. NATURALIST, 1:15. The serial number prefixed to each name indicates where in the Fourth State Catalogue the species should be inserted. The first collector and locality are given for each of the listed specimens. 82a. Potamogeton nuttallii Cham. & Schw., Nuttall’s Pondweed. Donor’s Lake, Wayne County, Ohio (Reported by A. D. Selby before meeting of Ohio Academy of Science, December 27, 1900.) 488a. Juncus dichotoma Ell. Forked Rush. Cuyahoga County. (Edo Claassen.) 647a. Betula alba pendula Hortorum. Pendulous White Birch. Escaped; Painesville. (Otto Hacker.) 781a. Dianthus deltoides L. Maiden Pink. Escaped: Painesville. (Otto Hacker.) 936a. Erysimum repandum L. Logan County. (A. D. Selby in report before Ohio Academy of Science, December 27, 1900.) 1117a. Lespedeza angustifolia (Ph) L. (L. capitata var. angustifolia Ph.) Narrow-leaf Bush-clover. Fulton County. (A. D. Selby in report at meeting of Ohio Academy of Science, December 27, 1900.) 1211a. Rhamnus caroliniana Walt. Carolina Buckthorn. Adams and Brown Counties. (W. A. Kellerman.) 1526a. Teucrium scorodonia L. European Germander. Escaped; Painesville, Lake County. (Otto Hacker.) 1650a. Gerardia besseyana Britt. (G. tenuifolia var. macrophylla Benth.) Bessey’s Gerardia. Wooster. (J. W. T. Duvel; reported by A. D. Selby at meeting of the Ohio Academy of Science, December 27, 1900.) 1759a. Leontodon hastilis L. Dandelion. Escaped; Painesville, Lake County. (Otto Hacker.) 1766b. Lactuca saligna L. European Wild Lettuce. Dayton. (A. D. Selby.) 1777a. Hieracium greenii Porter & Britt. Green’s Hawkweed. Wayne County. (Selby and Duvel; reported by A. D. Selby before meeting of Academy of Science, December 27, 1900.)