The more time is required to produce the same effect ; consequently, another medium must be resorted to, -- one that will not dry so rapidly, thus giving more time to cover the allotted space.
For this purpose some one of the essential oils is employed, Lavender is the one most generally used. Clove-oil is preferred by some, as being even a slower dryer than lavender.
Those who dislike the odor of these, may use aniseed-oil. others frequently used are tar-oil, and balsam of copaiba.
It is quite immaterial which medium is employed. Some one or two of those mentioned is a necessity, but it is a matter altogether of individual preference.
To many, the odor of turpentine is unpleasant. Thees may use lavender-oil and alcohol, in about equal proportions, with satisfactory results.
In china painting, there need be no material used that is offensive. The amateur is counselled to use at all times the medium or method by which the best results are obtained by himself, and not to be influenced to much by the experience of others. Any of these mediums mentioned are reliable, and may be used with safety.
Thick or fat oil may be so easily accumulated that no one need ever purchase it but once, in the beginning. Spirits of turpentine should be fresh
