1 The system used in weighing all commodities except precious stones, precious metals, and drugs. 2 The system used in weighing precious stones and precious metals such as silver and gold. de Pounds Kilograms Pounds Kilograms 3.281 bushels (struck measure).3 rious "barrels" established by law or usage. Federal law recognizes a 31- and a 40-gallon barrel, the type of liquor. In addition, the number of gallons recognized as making up a barrel differs States. fruits and vegetables and other dry commodities, except cranberries, recognized by the Dept. of measured by U.S. Government. APPROXIMATE WEIGHT OF PETROLEUM AND PRODUCTS [In the United States petroleum and its products are measured by bulk, not weight. Quantities are customarily reduced to the equivalent of barrels of 42 U.S. gallons (158.984 liters). In many foreign countries these commodi ties are measured by weight. The specific gravity of the different grades of crude petroleum and of the finished products varies materially. On the basis of approximate averages, the Department of Commerce uses the following factors for converting foreign weight statistics to gallons or to barrels of 42 gallons] APPENDIX II Historical Series-Index to Tables in Which Historical Statistics Series Appear [Listed below are those statistical time series (identified by number) appearing in Historical Statistics of the United States, Colonial Times to 1957, and its companion volume, Historical Statistics... Continuation to 1962 and Revisions, for which tables in the Statistical Abstract present comparable figures. Historical series are listed only where comparable data are available for one or more years later than 1957. In a few instances, it may be necessary to combine figures shown in the Abstract to obtain totals comparable to the series shown in Historical Statistics] |