If the facts connected with this outbreak be honestly faced, it must be rendered clear to any unprejudiced observer that Dr W. Lindow Dickinson was the first person to observe, recognise, and treat the Trichina disorder in this country. No other English, Scotch, or Irish physician has encountered any similar case. If I lay stress upon this fact it is because I have learned from Dr Dickinson that another person has asserted priority in this relation. Sir Dominic Corrigan is stated to have told a gentleman in the House of Commons, “that he had often met with trichiniasis in his practice in Dublin,” further averring that the disease “was quite common in many parts of Ireland.” If Sir D. Corrigan merely desired it to be understood that he had repeatedly encountered the Trichina at post-mortem examinations, then there is nothing surprising in his statement, but if, on the other hand, the disease itself has been frequently recognised in the living Irish human subject, one can only express astonishment that hitherto no single instance of the kind appears to have been recorded either in the public or professional journals. BIBLIOGRAPHY (No. 21).--_English Literature._--_Allman, G. J._, “Exhib. of Specimens,” ‘Micr. Jrn. and Structural Record,’ 1842, p. 94.--_Althaus, J._, ‘Essay on Trichinosis,’ London, 1864.--_Idem_, “On a Suspected Case,” ‘Med. Times and Gaz.,’ 1864, p. 161; see also pp. 362 and 390.--_Atwood_, see _Belfield_.--_Ballard, E._, “On Diseased Meat,” ‘Med. Times and Gaz.,’ 1864.--_Belfield_ (with _Atwood_), “Trichinæ in Pork;” ‘New York Med. Rec.,’ Dec. 28, 1878; ‘Med. Times and Gaz.,’ Feb. 15, and ‘Lancet,’ Feb. 22, 1879.--_Bellingham, O. B._, ‘Dublin Med. Press,’ 1852.--_Bowditch, H. J._, “Cases of Trichina,” ‘Boston Med. and Surg. Journ.,’ 1842-43-44.--_Bristowe, J. S._ (and _Rainey_), ‘Trans. Path. Soc.,’ 1854.--_Chevers, N._, “Sanitary Efforts in regard to Trichiniasis,” ‘Lancet,’ 1864, vol. ii, p. 733.--_Cobbold, T. S._, “On the Discovery of Trichina, in relation to the question of Priority,” ‘Lancet’ for March 3, 1866, p. 244.--_Idem_, ‘Parasites, and the part they play in the Economy of Nature’ (lecture), Manchester, 1873, p. 46; also in the ‘Veterinarian,’ March, 1874.--_Idem_, Remarks in the ‘Journ. Soc. of Arts,’ 1866, p. 399; also in ‘Med. Times. and Gaz.,’ 1867, p. 24; also in ‘Lancet,’ Feb., 1864 and 1866, p. 538.--_Idem_, ‘Our Food-producing Ruminants and the Parasites which reside in them’ (Cantor Lectures), 1871.--_Idem_, “Experiments with Trichina,” ‘Proceed. Linn. Soc.,’ vol. ix, p. 205, 1867; see ‘Lancet’ for Jan. 13, 1866, p. 52; ‘Brit. Med. Journ.’ for Dec. 22, 1866, p. 713; also ‘Lancet’ for Jan. 9, 1867, p. 91.--_Idem_, “Worms” (l. c., Bibliog. No. 2, Lecture xviii), 1872.--_Idem_, “Outbreak of Trichinosis in England,” ‘Brit. Med. Journ.,’ 1871, p. 435.--_Idem_, “Trichinæ in Fish” (alleged to have been found in a pike by Dr. Elendenen at Ostend), in the ‘Lancet’ (anonymous annotation) for Nov.