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May 28th.—Assay for gold, of concentrates from quartz-crushing; for Mr. Donald, jun., Dunedin. July 2nd.—Four assays of four samples of quartz for gold, and analysis of manganese ore ; for Mr. John Eeid, Blderslie, Oamaru. (Work done by Mr. P. Fitzgerald.) October 2nd.—Assay of sample of quartz for gold ; for Messrs. Haggitt Brothers and Brent, Dunedin. October 3rd.—Assay for gold of crushing-battery tailings from the Bare wood Mine; for Mr. Andrew Hamilton. October 4th.—Assays for gold of concentrates from crushing-battery, and of a sample of highlymineralised quartz, from the Barewood Mine ; for Mr. Andrew Hamilton. October 10th.—Assays for gold of blanketings from crushing-battery, Barewood Mine; for Mr. Andrew Hamilton. October 29th. —Assay of sample of quartz for gold; for Mrs. Heffernan, Dunedin. Determinations of Mineral and Rook Specimens. (Made by myself, and not charged for.) December 4th, 1893.— A specimen of a greyish-white ore in quartz from Preservation Inlet, sent by Captain Malcolm, proved to be arsenical pyrites containing only a trace of gold. January 17th, 1894. —A sample of a white soft mineral found near Dunedin, sent by Mr. C. Chapman, proved to be gypsum. March 15th.—A crystal of a dark-brown mineral from the West Coast, sent by Mr. B. Hooker, proved to be garnet. April 17th. —A specimen of lead-grey ore sent by the editor of Witness, proved to be stibnite (sulphide of antimony). April 23rd. —Two metallic minerals impregnated in quartz from Cromwell, forwarded by editor of Witness, proved to be galena and iron-pyrites. June 12th. —Examined and reported on a sample of asbestos from a lode in serpentine in the Gentle Annie Eange, Arrow district, forwarded by O'Leary and Co., Gibbston. June 20th.—Examined and reported on samples of lignite and anthracite from Fairlie, sent by editor of Witness. June 29th.—Two reports on specimens of quartz rich in black manganese-ore (psilomelane), forwarded by editor of Tapanui Courier. September 23rd. —Two samples of black sand, forwarded by editor of Witness, proved to be— one hematite with a little magnetite, the other magnetite with some hematite. October 4th.—Two metallic minerals impregnated with quartz, forwarded by editor of Witness, proved to be arsenopyrite and galena. October 20th.—Deposit from a mineral spring on the Cheviot Estate, forwarded by editor of Witness, proved to be ferruginous and calcareous clay. A specimen of an intrusive dyke rock from the so-called Burnet's face in the Westport coalmining district, forwarded by Mr. N. D. Cochrane, Inspector of Mines, proved, on microscopic examination of thin sections sent with the specimen, and of others prepared by myself, to be quartz-porphyry. Specimens of a rather decomposed rock from Ohika Bluff, also sent by Mr. Cochrane, I determined to be phyllite from their microscopic character, after vain attempts of preparing thin sections for microscopic examination. Donations to the Mining Museum. The rock and mineral collections of our museum have during the year been enriched by a considerable number of specimens by many kind donors, as under :—■ Mr. A. Hamilton, the Eegistrar : Eighteen specimens of rocks from Macquarie Island. Also a sample of black amorphous sulphur in small round pellets, concave on one side, from the Waiotapu Valley, North Island. Further, from the Water of Leith Valley, near Dunedin, a specimen of andesite, with a druse cavity, showing fine radiating crystals of aragonite, and, distributed over a mammillary coating of zoolitic matter, fine transparent crystals of phillipsite. Mr. Thomas Esdaile: Seven specimens of granite and gneiss from Brazil; ten specimens of rocks from the Thames Goldfield, the Crown Mine, Waihi, and Mount Tarawera ; twelve specimens of rocks from the Hot Lakes district, North Island ; five rock specimens from Lyttelton Harbour; and six specimens of auriferous quartz from the Crown Mine, Thames district, two showing fine pseudomorphous crystals of quartz after calcite. Mr. James Park, Director, Thames School of Mines : One specimen of pearlspar, one of chlorite rock full of magnetite, one of quartz, and three of granite, from the King-country, North Island. Mr. N. D. Cochrane, Inspector of Mines : Seventeen specimens of rocks and minerals from different places on the west coast of the South Island, including coal, auriferous quartz, stibnite, scheelite, garnetiferous granite and mica schist, and actinolite. Mr. W. L. Neill: Fine large crystal of black tourmaline in chlorite rock, from the Nelson District. Messrs. Gibb and Macdonald : Eight specimens of partly pure, partly altered, and chromitebearing dunite, from the Dun Mountain, near Nelson. Mr. D. Wilkinson : Eight specimens of tin ore, from Brookstead, Eoy's Hill, and Eex Hill, Tasmania. Mr. C. Boydell: Twelve specimens of Port Chalmers breccia, showing inclusions of phonolite and other rocks. Mr. W. Goodlet: Three specimens of pitchstone-breccia from near Oamaru.