“If it is necessary to register the movements of the heart a small instrument invented by M. Marey is very useful. The animal is fastened on its back to a wooden table, and its heart being laid bare, can be held level with the abdominal region by a pair of bent tongs.”--_Traité de Physiologie_, Béclard, Vol. II., p. 37.
=Martin, H. Newell.= M.A.; D. Sc.; Prof. Biol., John Hopkins’ University, Baltimore, U.S.

Author of “The normal respiratory movements of the frog, and the influence upon its respiratory centre of stimulation of the optic lobes,” _Journ. of Physiol._, 1878, p. 131; “On the respiratory function of the internal intercostal muscles,” jointly with E. Murray Hartwell, M.A., _Ibid._, Vol. II., No. 1, p. 24.

“After dividing the skin in the middle line, I have always removed a piece of the skull with a small trephine applied in a lozenge-shaped area which is seen to be bounded on the sides by four small vessels. The posterior edge of the opening thus made extends back to about opposite the posterior margin of the cerebral hemispheres, and the aperture was enlarged with scissors until the front edges of the optic lobes came into view. These were carefully and completely separated by a cataract knife from the parts of the brain in front of them, and the latter were removed from the cranial cavity; the incision in the skull being usually carried forwards to facilitate this removal. The edges of the skin were then brought carefully in contact, without sutures, and the animal placed in a dish containing a little water and left until the wound healed up … they were not fed, as experience showed me that for the week or two during which I desired to keep them, they did better without food; or at least without the exhausting struggle which the attempt to open their mouths called forth.”--_Journ. Physiol._, Vol. I., p. 155.

“Dogs and cats were employed in our experiments.”--_Journ. Physiol._, Vol. II., p. 25.
=Martin, Hippolyte=, 62, Rue de la Chaussée-d’Antin, Paris. Phys. Hos. Dis. Children.
“M. Hippolyte Martin has presented to the Biological Society of Paris, specimens of artificially excited tuberculosis in rabbits, resulting from the injection of apparently inert powders (lycopodium, etc.), into the peritoneal cavity.”--_Brit. Med. Journ._, April, 2, 1881.





