3. The carriage of ferro-silicon on vessels carrying passengers should be prohibited. When carried on cargo boats it should, if circumstances permit, be stored on deck. If it be considered necessary to store it elsewhere, the place of storage should be capable of being adequately ventilated, and such place of storage should be cut off by airtight bulkheads from the quarters occupied by the crew of the vessel. 4. This regulation should apply to the transport of ferro-silicon on river or canal barges as well as on sea-going vessels. 5. Storage places at docks or at works where ferro-silicon is used should have provision for free access of air, and should be situated at a distance from work-rooms, mess-rooms, offices, &c. [L] Regulations 5-7 contain precautions to be observed in the corroding chambers. APPENDIX REFERENCES PART I PROCESSES OF MANUFACTURE AND INSTANCES OF POISONING GENERAL SURVEY OF POISONING IN CHEMICAL INDUSTRIES [1] Leymann, _Concordia_, 1906, Nos. 7, 8 and 9; [2] Grandhomme, _Die Fabriken der Farbwerke zu Höchst a. M._, Verlag Mahlau, 4th edition. SULPHURIC ACID INDUSTRY [1] _Zeitschr. für. Gewerbe-Hygiene_, 1907, p. 230; [2] Bath, _Zeitschr. f. Angew. Chemie_, 1896, p. 477. HYDROCHLORIC ACID AND SALTCAKE MANUFACTURE [1] _Zeitschr. f. Gewerbe-Hygiene_, 1906, p. 562; [2] _Zeitschr. f. Gew.-Hyg._ 1902, p. 62; [3] Walther in Weyl’s _Arbeiterkrank-keiten_, p. 666. CHLORINE AND BLEACHING POWDER [1] _Zeitschr. für. Gew.-Hyg._, 1906, p. 280; [2] _Concordia_, 1906, No. 8; [3] _Arch. f. Hyg._, vol. 46, p. 322; [4] Egli, _Unf. b. Chem. Arb._, Zurich, 1902, p. 40; [5] Vaubel, _Chemiker Zeitung_, 1903; [6] _Concordia_, 1907, No. 7; [7] Rumpf, _D. Med. Wochenschr._, 1908, vol. 34, p. 1331; [8] Müller, _Vierteljahrsschr. f. Ger. Med. ü öffentl. Sanitätsw._, vol. ix., p. 381; and Roth, _Komp. d. Gewerbekrankh_, p. 205; [9] Klocke-Bochum, _Zeitschr. f. Gew.-Hyg._, 1906, p. 563; [10] Sury Bienz, _Vierteljahrsschr. f. Ger. Med._, 1907, vol. 34, p. 251; [11] Erben, _Handb. d. ärztl. Sachverst_, 1910, vol. ii. p. 266; [12] _Concordia_, 1902, No. 5., and _Vierteljahrsschr. f. öff. Ges. Pfl._, 1902, Suppl. p. 371; [13] Mohr, _D. Med. Wochenschr_., 1902, vol. 28, p. 73; [14] ‘Über Chlorakne,’ _Archiv. f. Dermatol._, 1905, vol. 77, p. 323; [15] Dammer, _Handb. d. Arb. Wohlf._, vol. i. p. 433; [16] _D. Arch. f. Klin. Med._, 1901, vol. 71, p. 370; [17] Schuler, _D. Vierteljahrsschr. f. öffentl. Ges. Pfl._, vol. 31, p. 696; [18] Egli, _Unf. b. Chem. Arb._, Zurich, 1902, pp. 22, 45; [19] Rambousek, _Concordia_, 1910, No. 6. MANUFACTURE AND USE OF NITRIC ACID AND ITS COMPOUNDS