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LOCATION AND AREAS OF FORESTS OWNED BY THE UNITED STATES.

Y. M. C. A. is placing county secretaries in the rural counties of many states. The boys' scout movement is beginning to include the country village and even the boys in the consolidated rural district in the open country.

dertaken to eradicate the hookworm with other lines of advancement. The disease from southern rural commu-| nities; and the general movement to place home economic education in all schools attended by girls from the farm are doing much to build up the farm and to make for rural social betterment. There is a vigorous movement on foot to study the condition of the country church, which has not kept pace in its development

Periodicals devoted to farming and home making are obtaining new subscribers by the hundreds of thousands

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from New England sections infested by the gypsy moth and the browntail moth. A Federal law covering this phase of nursery-inspection work was defeated last winter owing to disagreements between interested parties. It will probably be enacted in a modified form at the present session. Canada has greatly strengthened her quarantine service during the past season, with the special object of excluding gypsy and browntail moths and similar pests from the Ontario fruit region.

most states recognizing those granted | ulations have been enforced for the by officials in other commonwealths; inspection of nursery stock shipped some eighteen requiring nurserymen from outside the state to file a certificate from the local authorities before they are permitted to do business. A number of states, in addition, prohibit the entrance of stock without fumigation with hydrocyanic-acid gas. The county system is strongly favored in the west, while the eastern and central states administer the law through a state official. The latter may be a general agricultural or horticultural officer, an entomologist, or an entomologist and botanist. The determination of the legal requirements is usually directly or indirectly in the hands of an entomologist. Only the more injurious insects, such as codling moth, San José scale, gypsy moth, brown-tail | moth, and the dangerous plant diseases like peach yellows, are discriminated against. Specific proscription by legislators of dangerous insects and fungus diseases, with sundry attempts to designate treatment by law, is giving way to more general enactments, placing larger discretionary power in the hands of an executive. There is a strong tendency to make the provisions of the various state laws, so far as they relate to interstate commerce, as uniform in their requirements as practical.

The peril of introducing serious insect pests and dangerous plant diseases has been recognized abroad. Certain European countries have for years insisted upon the inspection of living plants to prevent the introduction of phylloxera, an American insect which has proved a most serious pest of the European grape. Australian and South African authorities have been very progressive in nursery-inspection work, some even going to the extent of excluding plants likely to be infested with serious insect enemies or fungus diseases.

The rigid quarantine maintained by several southern states against the destructive cotton boll weevil, though not strictly germane to this topic, deserves mention, since the same principles apply. Such is also true of recent local restrictions enforced for the purpose of freeing towns, counties, or even states, from the cattle tick or Texas fever tick, a most serious check upon animal industry in the South.

The presence of numerous winter nests of the brown-tail moth on seedling trees from Europe last winter, and the preceding, emphasized the inadequacy of the quarantine in our eastern ports against injurious insects, since individual states have no jurisdiction over interstate com- The Federal insecticide act of 1910 merce, not to mention international (S. 6131), modeled upon the puretrade. Fortunately, through co- food law, is destined to have a prooperation with Federal officers, it was found influence on the constantly possible for state inspectors to as- increasing trade in insecticides. It certain the destination of the infested establishes standards for a number stock, the pests being destroyed on of the better known insecticides enthe grounds of the consignee. A tering into interstate commerce and number of states adopted special rul- provides that the label on each packings to meet the danger. Arrange- age give clearly the essential conments have also been made for the stituents. New York State and inspection of this stock prior to its Colorado have already enacted legisshipment to America. Stricter reg-lation along similar lines.

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mines is 3 or 4 per 1,000 employed, as compared with about 0.55 to 2.50 for metal mines of Europe.

United States Bureau of Mines. On July 1, 1910, the law became effective whereby there was established a Bureau of Mines in the Department of the Interior, to take over all the work of the technologic branch of the U. S. Geological Survey except investigations of structural materials, which latter was transferred on the same date to the Bureau of Standards, Department of Commerce and Labor. Subsequently, Dr. Joseph A. Holmes, who has had already much experience fitting him for the position, was appointed director of the newly established bureau. It is evident that the work to which the most attention will probably be paid at first is investigations of mine accidents, for which $310,000 has been appropriated. Large sums will be spent on rescue stations and appliances for prevention of accidents, investigations of explosives, electricity, gas, dust, etc., and examination and codification of mining laws. The experiment station of the Geological Survey at Pittsburg, and the large amount of data already collected there have been transferred to the new bureau. The next most important work in the immediate present will doubtless be a continuation of the fuel investigations of the Geological Survey, for which an additional $100,000 has now been appropriated. These will comprise chemical and physical investigations, including efficiency tests, investigations of lignite, peat, briquetting, etc., and inspection of government fuel purchases. The previous fuel investigations have resulted in favorable results from an educational standpoint. The Bureau of Mines will publish and distribute bulletins describing the results of its investigations and work, similar to the bulletins of the Geological Survey and other departments of the govern

ment.

IRON AND STEEL

Iron Blast-furnace Smelting.-An important development in blast-furnace smelting is the increasing use of the so-called "thin-lined blast fur

nace." The iron blast-furnace lining of refractory fire brick is usually cooled by water only at the hearth section and the widening part above, known as the boshes. The brickwork of such a furnace will be scorified during the smelting operations, and the blast-furnace lines will depart, to some extent, from the original form, with a consequent falling off in the efficiency of smelting, ultimately resulting in the necessity of putting the furnace out of blast and repairing the lining. The "thin-lined blast furnace," on the other hand, is cooled from top to bottom by means of channels on the outside of the steel plate, through which channels water circulates. The brickwork lining inside the steel plate is very thin; and this, together with the water cooling of the outside, enables the heat to escape so fast that the bricks do not get hot enough to corrode. Experiments of the past two years have resulted so successfully that this type of lining is now being employed in several places in the United States.

Enriched Blast for Iron Blast Furnaces. On theoretical grounds J. E. Johnson, Jr., for some years past has been advocating the enrichment of ordinary air blast with oxygen, in order to increase the temperature of the hearth and therefore decrease the amount of fuel required; also, for the purpose of neutralizing irregularities due to moisture in the blast, and thus dispense with the costly apparatus necessary for the most modern process of drying the blast. This enrichment operation is now to be employed at the Société d'Ougrée-Marihaye in Belgium, and is a result of the modern possibility of obtaining oxygen at a low price by means of liquid air. The blast for the Bessemer converter will also be enriched in the same way.

Briquetting of Flue Dust, or Iron Ore. The year 1910 witnessed the first important employment of processes for the agglomerating of flue dust in the United States, and the Gröndal process is the one to be employed. This process is employed in parts of Europe, although in Germany, where agglomerating is employed more than any other country, there being 500,000 tons of flue dust handled yearly, the sintering proc

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