6The Annual Survey figures for major group 24 are not strictly comparable with 1947 data. In 1947 only sawmills that produced more than 200,000 board feet of lumber were required to report the information shown in this table, whereas for the Annual Surveys it was requested of all sawmills. It is estimated that all mills in the United States producing less than 200,000 board feet account for approximately 3 percent of total employment for major group 24. No estimate has been made of the importance of these small mills for individual States or Geographic Divisions.

7The logging industry (Industry 2411) was excluded from the 1947 Census of Manufactures, but included in the Annual Surveys of Manufactures. Includes privately owned and/or operated establishments classified in Industry Group 19, "Ordnance and accessories." Government owned and operated establishments are excluded from the annual survey.

"Administrative office and auxiliary unit employment is based on the number of employees reported as of mid-March under the Old Age and Survivors Insurance program. The administrative and auxiliary employment and pay roll figures for 1950 were also used for 1951, as 1951 QASI program data were not available for this publication. The approximated annual total pay roll figure shown in Column B was derived by multiplying The figures shown for administrative office and auxiliary units do not represent a separate industry group but rather a balancing total for all manufacturing industry groups.

10The data for North Dakota and South Dakota have been combined because of the high standard errors associated with the annual survey estimates for each State.

(Dollar figures and man-hours are in THOUSANDS.

Table 7.--GENERAL STATISTICS FOR THE SOUTH ATLANTIC STATES, "All industries, total" are shown for the Division, and for the States. Major industry groups or (b) the standard error of the estimate for "All employees, number" or "Value added by manufacture" exceeds 30 percent for a division or standard errors shown for employment and value added. Division and State totals include the estimate for all component industry groups, derived by subtraction, are generally unreliable.)

15

BY MAJOR INDUSTRY GROUPS: 1951, 1950, 1949, AND 1947

within these geographic classifications are not published if: (a) survey estimates are inconsistent with other census series and related data; percent for a State. Standard errors of the other general statistics estimates for an industry are usually of the same general magnitude as the regardless of whether or not separate data are shown for the individual industry groups. Unpublished estimates, including those which can be

swithheld because the estimate did not meet publication standards, either on the basis of the associated standard error of estimate or on the basis of a consistency review.

1The 1951, 1950, and 1949 "Average number of employees" is based on reported employment totals for the pay roll periods ended nearest the 15th of March, May, August, and November. For 1947, an average based on the mid-month employment for 12 months was used. 2Value of products less cost of materials, supplies, fuel, electric energy, and contract work.

3The percentage standard errors shown in this column indicate the differences that can be expected between the estimates and comparable complete canvass totals, because of sampling fluctuations. The estimates will differ from the complete totals by less than:

1) The percentage shown: approximately 2 times out of 3.

ii) Twice the percentage shown: approximately 19 times out of 20. (iii) Three times the percentage shown: almost always.

4To maintain comparability with 1951 and 1949 employment estimates, approximately 8,000 employees at plants not in production during 1950 have been added to the Division total, and as follows to the State totals: Delaware, 400; Maryland, 600; Virginia, 400; West Virginia, 700; North Carolina, 2,300; South Carolina, 700; Georgia, 1,600; and Florida, 1,300. These figures, however, are not included in the data shown for industry groups. In addition, some of the 1950 estimates for a few industry groups have been revised and therefore differ from previously

published data.

"The totals shown for 1947 do not include employment at central administrative offices and auxiliary units. "The Annual Survey figures for major group 24 are not strictly comparable with 1947 data. In 1947 only sawmills that produced more than 200,000 board feet of lumber were required to report the information shown in this table, whereas for the Annual Surveys it was requested of all sawmills. It is estimated that all mills in the United States producing less than 200,000 board feet account for approximately 3 percent of total employment for major group 24. No estimate has been made of the importance of these small mills for individual States or Geographic

Divisions.

7The logging industry (Industry 2411) was excluded from the 1947 Census of Manufactures, but included in the Annual Surveys of Manufactures. Includes privately owned and/or operated establishments classified in Industry Group 19, "Ordnance and accessories." Government owned and operated establishments are excluded from the annual survey. Administrative office and auxiliary unit employment is based on the number of employees reported as of mid-March under the Old Age and Survivors Insurance program. The administrative and auxiliary employment and pay roll figures for 1950 were also used for 1951, as 1951 QASI program data were not available for this publication. The approximated annual total pay roll figure shown in Column B was derived by multiplying by 4 the first quarter taxable pay roll figures listed in the joint Census-BOASI publication, County Business Patterns, First Quarter 1950. The figures shown for administrative office and auxiliary units do not represent a separate industry group but rather a balancing total for all