Respirators employ finely ground charcoal as an absorbent for poison gas and (cont) a film of cellulose made from wood pulp on eye glasses.

Respirators employ finely ground charcoal as an absorbent for poison gas and (cont) a film of cellulose made from wood pulp on eye glasses.

Forest management -- Victoria.

Respirators employ finely ground charcoal as an absorbent for poison gas and (cont) a film of cellulose made from wood pulp on eye glasses.

-

Forests Commission, Victoria

nd.

unknown

This image is out of copyright. It is provided for research purposes and must not be reproduced without acknowledgement of the University of Melbourne Creswick Campus Historical Collection. For information about ordering a copy of this image contact the Creswick Campus Historical Collection manager: cchc@lists.unimelb.edu.au

2x2 glass slide

Still image

646s