For a dull finish almost any kind of soft gum varnish is generally considered good enough; for a bright finish the following formula is recommended: Shellac 4oz., sand-arach 3 oz., Venice turpentine 1 oz., oil of turpentine 1/2 oz., camphor 10 gr., methylated spirit l pt. Carefully strain before use; apply with a camel-hair brush. The best results are obtained when the work is done in a hot room. When many coats are applied, sufficient time should be allowed for the undercoat to harden properly, otherwise " checking" or shrinking, causing a cobweb appearance, will be the result. This fault is not so apparent on dull as on bright finished goods.