L. HEINE. — Use of contact glasses

P. MoRAXx. — Verres de contact. (P. M. C.).

K. ZELENIN. — Device enabling surgeon wearing glasses to operate with gas mask. Sovet vrach Zhur, 15 octobre 1937.

LYAKER. — Rational method for instructing personnel by surgeon wearing gas mask. Sovet Khir, n° 10,

LYAKHOVITSKIY. — Problem of operation with gas mask.

TOLCHINSKIY. — Operation performed by surgeon wea-

ring gas mask. Sovet vrach Zhur (29 février 1934).

THE LANCET. L'emploi des verres de contact (27 juil-

let 1933).

Giorn. di Med. milit: — L’uso della maschera antigaz nei affetti di rifrazione, (nov. 1934).

E x HAE + Le an

La C4

Imp. spéciale de la Librairie Le François, 91, bd St-Germain, Paris.