POGGIO, "Ricerche isto-patologiche sul paramioclono molteplice," Rivista di patologia nervosa e mentale, 1905, p. 175.

POLIDORI, "Un caso di 'chorea laryngea' in un' istero-coreica," Il policlinico, June 29, 1901, p. 1103.

POPOFF, "Contraction de longue durée des masseters," Revue neurologique, 1899, p. 611 (reference).

POROT. See LANNOIS.

PRÉVOST AND BATTELLI, "De la production des convulsions toniques et cloniques chez les différentes espèces animales," La policlinique, October 15, 1904.

PRINCE, "Case of Multiform Tic, including Automatic Speech and Purposive Movements," Journal of Nervous and Mental Disease, January, 1906, p. 29.

PROUT. See CLARK.

Power (D'Arcy), "Cases to illustrate the Relationship which exists between Wryneck and Congenital Hæmatoma of the Sterno-Mastoid Muscle," Medico-chirurgical Transactions, vol. lxxvi. 1893, p. 137.

(Thirty-four references to the subject.)

Quervain (de), "Le traitement chirurgical du torticolis spasmodique d'après le méthode de Kocher," Semaine médicale, 1896, p. 405.