The tenth annual report of the Warden of the Standar: hi sures department of the Board of Trade, which was published a few days ago, contains much matter that is interesting to the general render, such as an account of the laying down of public standards of length in Trafalgar Square, just to the north of the fountains, a sketch of the history of the ancient pyxchamber in W.
er Abbey, é&c., but I fear peopl would hardly thank me for en-lai upon these topi xr, dealt with in this report is more particularly interesting to the mercantile community in the Far East, I allude to the verification during the past year of a series of standard weights and measures for the Gi This work was undertaken by the desir of the King of Siam, who commanded Phys Krasnp Kitcha Koson (I hope have got his name correctly), master of the oe ion it was stated to be the King's leasure that these standards should be opt for national reference, and deposited in the Department of Science in the palace, under the custody of the master of the Mint. It should be noticed that in Siam the standard temperature for ts and res is 65° Fahrenhei follow-Siamese primary standards 1. The Siamese unit of length, the standard Wa, intended to measure 80 English standard inches at the temperature of Fahrenheit.
The Wais Sok Kuh Nin This length of 80 English inches defined by lines upon a solid bar of standard silver. The length between the arked 0 and 80 has been found to to 79.997 inches of the Imperial rd yard, both bars being at the temperature 62° F., and of 79.999 inches, when both are at 2. The Siamese unit of wi zht, the Chang, called by foreigners catty," the legal weight of which is equal to 2.675 lbs. avoirdupois. This standard weight is constructed of platinum-iridium, and has been found equal in a vacuum to 2.674761 Imperial standard Ibs., and in air to 2.676007 Ibs., or 18,725,049 grains of the brass commercial 1b.
The smaller Siamese standard of lit, the Bat, called by foreigners th tical," being one-eightieth part of tin Chang, with a legal. weight equal to 234.0625 English grains, 'This standard weight is also constructed' of platinum-jum, and has been found equal in a vacuum to 294.04 grains of the Imperis] standard lb., and in air to 234.06515 grains of the commercial 1b.
4, The large commercial standard weight, the Hap, equal to 50 charly, the leval weight of which is 133.75 Ibs. avoirdupois. This commercial standard ig made of gilt guna metal, and has been found in air to be equal' to 133.751 Ibs. of the brass corns mercial Ib.
5. The Siamese unit menaure of capacity for dry goods, the Thungsat or Bucket, ita legal capacity in cubic dimensions being 101020 Siamese Nin, and consequently equal to 1137.8477 cubic inches.
6. The Siamese unit mensure of for liquids, the Thanan, or-Cuco its legal capacity in cubic dimensions being 5x5x4 S and consequently equal. to lish cubic inches, This is made of German silver, electroplated with silver, and has been found to contain 14,602.2 grains? weight of distilled or by computation of the capacity 57:83935 cubic inches at 85° F. =57,88 cubic inches, These six standards were constructed by Mr. Oertling.
—A brass Thongsat.
A brass Thana.
Both constructed by Messrs. J. Tyler and Sons.
By similar computation, the brass Thong sat was found of the capacity of 1156.196 cubic inches at 62' F., and 1156.959 cubic inches at 85°F. The brass Thanan was found equal to 58.053 cubic inches ut 62° F,, and 08,091 cubic inches at 85° Official certificates of verification in the usual form were issued from the Standards Department, showing the resulta of the comparisons of these Siamere standards, The verification stamp of the Department t, however, affixed to the standard, rs found being larger than those rally allowed. ards were engraved with the Royal Seal of Siam, and with a shield for an inscription to be engraved upon them on their arrival in Siam, London, 30th November.
Text read from the printed page and cleaned; old type leaves the occasional error.