580 CURRENT TOPICS. [J. F. I.

ments; carriages, wagons, sleigh and sled materials ; and foundry and machine shop products-as their principal products for 1923 and were therefore classified in the appropriate industries, and two reported products valued at less than $5000 in 1923. (No data are tabulated at the biennial censuses for establishments with products under $5000 in value.) Of the five establishments not previously classified in this industry, four were new to the census and one had been engaged primarily in the manufacture of other commodities such as foundry and machine shop products in 1921. R.

Aircraft.-The data collected at the biennial census of manufac- tures, 1923, by the Department of Commerce, indicate that the establishments engaged primarily in the manufacture of aircraft pro- duced 505 airplanes valued at $6,166,218 and 82 seaplanes and flying boats valued at $I ,570,851, together with other products to the value of $5208,194, making a total of $12,945,263. The rate of increase in this total as compared with 1921, the last preceding census year, was 94.9 per cent.

In addition, airplanes, seaplanes, and parts were made to some extent by establishments engaged primarily in other industries. The value of such planes and parts thus produced outside the industry proper in 1921 was $777,843, an amount equal to 11.7 per cent. of the total value of products reported for the aircraft industry. The corresponding value for 1923 has not yet been ascertained, but will be shown in the final reports of the present census.

Of the thirty-three establishments reporting for 1923, twelve were located in New York., .four each in California and Ohio, three in Illinois, and1 the remammg ten in Connecticut, Maryland, Michigan, Nebraska, New Jersey, Pennsylvania, Rhode Island, Washington. and Wisconsin. R.

Aluminum Manufactures.-The Department of Commerce announces that, according to data collected at the biennial census of manufactures, 1923, the establishments engaged primarily in the manufacture of aluminum castings, bars, plates, sheets, ware, etc., reported products valued at $106,930,367, an increase of 133.4 per cent. as compared with 1921, the last preceding census year.

Of the 119 establishments reporting for 1923, twenty-seven were located in Ohio, fourteen in Wisconsin, twelve in Michigan. eleven in New York, nine in Illinois, seven in New Jersey, six each in Indiana, Massachusetts, and Pennsylvania, five in California, and the remaining sixteen in Colorado, Connecticut, Iowa, Minnesota, Missouri, Nebraska, Rhode Island, Tennessee, and Washington. R.