CIRCULAR. The Managers now present to the public some of the general arrangements, adopted for the twenty-first annual fair. Exhibiters of specimens for premiums, excepting cattle and other live stock, agricultural and horticultural productions, &c., hereafter noticed, are required to bring them to the Garden, and obtain a certificate from the clerk of the fair, on Friday or Saturday, the 29th and 30th days of September, previous to the opening of the exhibition. PROGRAMME OF THE FIRST WEEK. Monday, Oct. 2.-Will be appropriated for the arrangement of the contributions. Vegetables, fruits, and flowers for the horticultural room, should be brought this day before 12 o'clock. Tuesday, Oct. 3.—The exhibition will open to the public at 9 o'clock A. M., and continue till 10 P. M., through the fair. The opening address will be delivered this evening, at 7 o'clock, in the Garden. A band of music will play during the evening. At 9 o'clock a grand display of fireworks. Wednesday, Oct. 4.—The steam engine, with moving machinery, will be in operation, and continue during the exhibition. Bands of music daily, as usual. Thursday, Oct. 5.-Ploughing and Spading matches at White Plains, Westchester county, N. Y., in conjunction with the Society of Agriculture and Horticulture of Westchester county. An address on the field. Saturday, Oct. 7.-Fireworks this evening at 9 o'clock. PROGRAMME OF THE SECOND WEEK. Monday, Oct. 9.-Cattle and other live stock to be exhibited on Wednesday, must be entered on the books this day, and the pedigrees delivered to the clerk at the committee room, at the Washington Drove Yard Hotel, in 44th street, between 4th and 5th Avenues. If previously sent to T. B. Wakeman, the corresponding secretary of the Institute they will be attended to. Great show of choice roses and dahlias to day at 12 o'clock, at Castle Garden, for special premiums. Tuesday, Oct. 10.-The great Central Convention of fruit growers will meet this morning, at 11 o'clock A. M., at Judson's Hotel, 61 Broadway. Address on agriculture at the Garden this evening, at 7 o'clock. Wednesday, Oct. 11.-The Cattle Show opens at 9 o'clock, A. M., at the spacious premises known as the Washington Drove Yard, in 44th st., between 4th and 5th Avenues, when all the animals must be on the ground. Thursday, Oct. 12.-Second and last day of the Cattle Show. Anniversary address at the Broadway Tabernacle at 7 o'clock, P. M. Music by an accomplished choir, under the direction of Mr. George Andrews. Saturday, Oct. 14.-Pyrotechnic exhibition, in competition for premium, at 9 o'clock P. M. Each exhibiter will be required to fire three pieces. Entries to be made on the books before 12 o'clock. The programme of the third week will be published the latter part of the second week. Notices of aquatic exhibitions, addresses and other interesting exercises and displays, in addition to those named above, occurring from day to day, will be published in the city papers. All contributors are earnestly desired to bring their articles early on the receiving days, as it will increase their claims to the best loca tions, enable the managers to open the fair more perfectly arranged, particularly operating machines, as time is required to adjust and fit their connection with the propelling steam power. . Each exhibiter is requested to hand to the clerk at the time of entry, the name of the article, the name and residence of the manufacturer, and by whom sold, distinctly written; it will facilitate the completion of a full and perfect catalogue, be satisfactory to visitors, and useful to the contributor; but to insure impartiality from the judges, it should not appear on the article until the decision is made by them; also, a written description, and the process of fabricating or producing, if peculiar, and particularly of labor-saving machines, as sometimes the object and uses of important improvements have escaped the attention of the judges. The best pure blood live stock, of well-authenticated pedigree, should be scrupulously attended to. Economy will warrant their being procured and preserved for breeding, by care and cost which. would be deemed by many extravagant. By equal care, no doubt our Merino Sheep would produce fleeces equal to those grown in Saxony. We are indebted to Charles L. Fleischmann, Esq., for his comprehensive statement of the mode of rearing Sheep, derived from observations during his late tour through that country. To produce equal health in Sheep, and fineness of wool, proper food, stabling, and constant care is necessary. If we ever expect to compete with the careful Germans in the finer specimens of wool, increased attention to breeding, feeding, and sheltering Sheep is obvious. Wool growers are requested to bring their best specimens for comparison with the best specimens of German wool, deposited in the Institute for that purpose. To awaken genius and sharpen competition, premiums of reward for merit, in number and value unprecedented by any other similar Institution, have been awarded. Within the last three years they have numbered 2,635. To reach the varied occupations of industry and art, and to give effect to the premiums, the collection of exhibited articles is required to be very extensive.. The rent paid by the Institute, and the annual cost of fitting up places of exhibition, with the necessary expenses for the services of hired men, receiving and delivering of articles, &c., all necessary to carry out the system of premiums, have amounted the last three years to $28,527. More than $25,000 of the above sum, by great econo-. my, has been supplied from the direct earnings of the Institute. Besides this, a portion of the income has been appropriated to purchases: for the library, a steam boiler and accompaniments, fixtures, &c., and to the fund intended for an edifice. These forming the permanent property of the Institute, now amount in value to $20,000. All has been derived from a generous public, who have not only cheerfully contributed, but at the same time shielded the Institute from the occasional unmerited aspersions, which never fail to be directed against every successful institution for great and good purposes. The amount of expenditures for premiums, &c., will be increased the coming Fair, and distributed among all occupations to the most meritorious in each, as it would be invidious to exclude particular occupations, though deemed by some of minor importance, when all are necessary for a perfect condition of civilized society. The Board of Agriculture specify in their Circular a great variety of premiums for cattle and other live stock. Among which, the working ox, that justly ranks with the most useful of animals, has not been overlooked. The following premiums are offered: For the best yoke of Working Oxen, presented by the owner and breeder, Silver Cup, $15. For the 2 best yoke of Working Oxen, without restriction, Silver Medal, For the best team of Oxen, consisting of not less than 5 yoke, from one county, $25. And the products of the farm, including those of the orchard, the vineyard and the garden, to which reference is had. The following premiums will be awarded on the reports of the committee on Field Crops: FARMS AND GARDENS. For the best Farm offered for Premium, of not less than 200 acres, Silver Cup of $15 or its value. For the best cultivated and most tastefully arranged Flower Garden, Farmers, Gardeners, and Amateurs wishing to compete for the foregoing premiums, must give notice in writing to T. B. Wakeman, the Corresponding Secretary of the Institute, on or before the 12th day of August next. A committee from the Board of Agriculture will visit each farm as soon as practicable after such notice. Any extraordinary crop, within convenient distance, will, on notice, be visited by the committee on Field Crops, and a report made thereon, which will be submitted. The premiums will be increased in number and value on dairy productions, culinary vegetables, and also those intended for feeding stock, and on fruits and flowers. For the purpose of turning public attention to the inestimable value of a domestic supply of fine wool, which can only be obtained with great care and attention, from pure blood Sheep, the Managers have resolved on the following premiums, viz: For 25 Fleeces of the finest and best American Wool for Clothing, do Silver Cup, $15. do Silver Cup, $10. Silver Cup, $15. For 25 Fleeces of the 2d For 25 Fleeces of the 2d do do Silver Cup, $10. And as a steady and adequate home market will afford the best encouragement for the expenditures and care requisite to such supply of the finest fleeces, and as such home market can be created only by the manufacturers, to increase competition among them, the following premiums on woolens made of domestic Wool, have been adopted, viz: For the best specimen of Broadcloths, not less than 75 yards, made exclusively from wool grown in the United States, Gold Medal. Silver Cup, $8. For the third best, 66 Silver Medal. For the best specimen of plain Cassimeres, as above, Gold Medal. For the best specimen of not less than 75 yards, &c., of Fancy Cas |