INLAND POST
27
Fatty Substances.
Fatty substances which are not easily liquified, such as ointments, soft soap, resin, etc., the transmis- sion of which offers less inconvenience, must be enclosed in an inner cover (box, bag of linen or parchment etc.) which must itself be placed in a second box of wood, metal, or strong and thick leather.
Dyes.
Dyes such as aniline etc. are not admitted unless enclosed in stout tin boxes, placed inside wooden boxes, with sawdust between the two covers. Dry non-colour- ing powders must be placed in boxes of metal, wood, or cardboard, and these boxes themselves enclosed in a bag of linen or parchment.
Celluloid.
Letters or parcels containing thoroughly seasoned raw celluloid (including scrap celluloid), that is, celluloid which has been freed from all volatile solvents, or articles (other than cinematograph and photogra- phic films) manufactured of celluloid which has been similarly seasoned, may be accepted for transmission by post if packed in cardboard boxes, corrugated card- board cartons, or wooden boxes, or completely enclosed in corrugated cardboard. Raw celluloid, containing volatile solvent (that is, unseasoned), sometimes called xylonite cake, also liquid celluloid (celluloid solutions), may not be sent by post. Calendars, and similar articles, in which only a small quantity of celluloid is used, may be accepted for transmission under the ordinary conditions.
Sharp instruments.
These may be sent by post only if the edges or points are carefully covered so as to prevent risk of injury to any officer of the Post Office or damage to other packets.
Suit, attaché, dressing, and similar cases.
These should be protected by wooden boards cover- ing the sides.
Umbrellas, walking-sticks, fishing rods.
These and similar articles should be protected by two stout strips of wood, each strip being as long as and slightly wider than the article protected.