Hay owes its fragrance partly to cumarin, which is present in many plants, but in especially large amount in tonka beans. Hence all similar perfumes must contain tincture of tonka. Other aromatic substances, however, contribute to the odor of hay, but the cumarin gives, as it were, the keynote to its real odor. A very pleasant perfume is made after the following formula: Essence of rose (triple) 1 qt. Essence of geranium 1 qt. Extract of jasmine 1 qt. Extract of orange flower 1 qt. Extract of rose 1 qt. Tincture of tonka 2 qts. Some add to this perfume 1 pint of extract of cassie which imparts a greenish color to it. ROYAL HORSE-GUARD’S BOUQUET. Extract of orange flower 20 fl. oz. Tincture of musk 10 fl. oz. Extract of rose 5 pints. Tincture of vanilla 20 fl. oz. Tincture of orris root 20 fl. oz. Oil of clove 120 grains. BOUQUET D’IRLANDE. Extract of white rose 5 qts. Tincture of vanilla 1 lb. An exceedingly fine perfume. HOVENIA. This plant, Hovenia dulcis, indigenous to Japan, has a peculiar odor, which, however, is not pleasant to European taste. The perfume sold under this name has a special odor, though it differs from that of the plant. It is made according to the following formula: Oil of lemon 3 oz. Oil of clove ¼ oz. Oil of neroli 75 grains. Oil of rose 75 grains. Alcohol 5 qts. HUNTSMAN’S NOSEGAY. Essence of rose (triple) 1 pint. Extract of cassie 6 fl. oz. Extract of orange flower 6 fl. oz. Tincture of musk 150 grains. Tincture of tonka 1 pint. Oil of citronella 150 grains. Alcohol 3 qts. BOUQUET DU JAPON. Extract of rose 1 qt. Extract of orange flower 1 qt. Essence of patchouly ½ pint. Extract of verbena 1 pint. Essence of vetiver 1 pint. Tincture of civet 3 fl. oz. Tincture of musk. ⅓ fl. oz. EAU JAPONAISE. Tincture of cedar wood 1 qt. Essence of patchouly 1 qt. Extract of santal 1 qt. Extract of verbena 1 qt. Essence of vetiver 1 pint. Essence of rose (triple) 1 qt. JOCKEY CLUB. England first introduced a perfume under this name, which soon became popular and was largely imitated. Jockey Club perfume is among the finest known to the trade; the delicacy of its odor rests largely on the extracts of cassie and tuberose which are employed in their strongest form—an alcoholic extract of a pomade well charged with the odors of the plants. As in the case of Cologne water, there are a number of widely diverging formulas for its preparation, from which we select a few which furnish excellent perfumes. JOCKEY CLUB, A (ENGLISH FORMULA).