=Rosenthal, Isidor=, B. 1836, Erlangen. M.D. Berlin Univ.; Prof. Physiol. and Hygiene at Med. Fac. Univ. of Erlangen.

Author of “Athembewegungen u. Innervation derselben, thierische Wärme,” in Hermann’s “Handbuch der Physiologie;” “Allgemeine Physiologie der Muskeln u. Nerven,” in “Internationale Wissenschaftliche Bibliothek;” “Bier u. Branntwein u. ihre Bedeutung für die Volksgesundheit,” 1881.

The Vivisectors' Directory — Part 123

=Rossbach, Michael Joseph.= Prof. Med. Fac. Univ. Jena; Director of the Clinic and Policlinic.

The Vivisectors' Directory — Part 123

Author of “Pharmakologische Untersuchungen,” Wurzburg, 1876; “Ueber den Einfluss der Künstlichen Respiration auf Strychnin-vergiftung,” Centralbl. f. d. Med. Wiss., 1873, No. 24; “Neue Studien ueber den Physiologischen Antagonismus der Gifte,” Pflüger, Vol. XXII., p. 1.

The Vivisectors' Directory — Part 123

Experiments on curarised dogs and cats: Nerves dissected out and stimulated, drugs injected. (_See_ Luchsinger.)

“At the same time Rossbach also studied the influence of artificial respiration on the cramps induced by strychnine. He totally contradicts the results observed by Leube. Artificial respiration, he finds, does not alter the effects of poison, whether it be given in doses sufficient to produce cramps only or in fatal doses.”--Eckhart’s _Beiträge_, Vol. X. (1883), p. 40.

=Roth, Wladimir.= M.D.; ex-Chef de Clin. at Univ. of Moscow.

Made experiments with the Venom of Salamanders on frogs.--Rep. in _Gaz. Med. de Paris_, 1877, p. 409.

=Roy, Charles Smart=, Cambridge. M.B. Edin. and C.M. 1875 (Univ. Edin.) M.D. Edin. 1878, (Edin.) G. H. Lewes, Scholar; late Brown, Prof. of Pathol. Univ., of London; Prof. of Pathol. Univ. of Cam., 1884; formerly Asstn. to Prof. of Physiol. Univ. of Strasburg.

Contrib. to Journ. of Physiol., Du Bois Reymond’s Archiv. and Virchow’s Archiv.

_Held a License for Vivisection at Cambridge University New Museum Physiological Laboratory and at Brown Institution, London, in 1880-81-82-83. Certificates for Illustrations of Lectures and for Experiments on Cats, Dogs, Horses, Mules or Asses, in 1882. Special Certificates for Experiments without anæsthetics and Certificate permitting Experiments on Cats, Dogs, Horses, Mules or Asses in 1883. No Experiments returned on Horses, Mules or Asses._

“Let me refer to what has been done by Dr. Roy in 1880, partly in the Physiological Laboratory at Cambridge, and partly in the Leipsic Philological Institute, the experiments being carried out on rabbits, cats, and dogs. The animal was placed under curare, artificial respiration was used, that is to say, a tube was pushed down the animal’s windpipe, and worked by an engine in regular puffs in order to keep the blood oxygenated. Then the back, skull, chest, and abdomen were opened. I don’t suppose these were always opened in one animal, as in many cases the animal would have died. No doubt sometimes part of the experiment took place on one, and sometimes on another. The various organs were dissected out. The principal nerves such as the sciatic nerve and so on, were tied in two places and cut. This lasted for many hours. It is stated the animal was under the influence of anæsthetics, but the use of curare is admitted. In the most scientific opinion, when curare is used, it neutralizes the use of the anæsthetic. I feel myself at a great disadvantage in treating of these matters as compared with the gentlemen beside me; but if I am making a mistake, I trust I may be corrected. In this instance, however, I believe I am right. Curare creates paralysis, it paralyses the muscles and prevents the animal resisting or showing the symptoms by which alone the existence of anæsthesia can be tested.”--_Mr. Reid’s Speech in House of Commons_, April 4th, 1883.