TEST SCORING MACHINE Test Scoring Machine 94-2333-0 1939 19 May Test Scoring Machine 32-9145-1 1946 20 Published Tests Adapted for Use with June the IBM Electric Test Scoring Machine 27-4286-9 1948 8 In addition to the new types of punch-card machines referred to in the above list, an elaborate punch-card calculating machine is described in the following reference: ECKERT, W. J., The IBM Pluggable Sequence Relay Calculator, _Mathematical Tables and Other Aids to Computation_, vol. 3, no. 23, July 1948, pp. 149-161. A description of punch-card machinery in rather a light vein is contained in: ANONYMOUS, Speaking of Pictures: New Mechanical Monsters Ease _Life’s_ Growing Pains, _Life_, Sept. 15, 1947, pp. 15-16. ANONYMOUS, _540_, Chicago: Time-Life-Fortune Magazine, Subscription Fulfillment Office, 1948, 15 pp. New types of punch-card machinery are continually coming into use. Among them are: machines that take in punch cards and make punched paper tape (such as teletype tape), and vice versa—useful for transmitting punch-card information over wires; an electric typewriter operated by punch cards—useful for preparing almanacs for sea and air navigation, etc.; a calculator programmed by punch cards, consisting of an assembly of a tabulator, an electronic calculating punch, and an auxiliary storage unit, all cabled together—useful for some types of long calculation; etc. For information about such machinery, the manufacturers may be consulted. PUNCH-CARD CALCULATING MACHINERY: APPLICATIONS There are many articles in scientific journals on applications of punch-card calculating machinery to technical problems. The fields of engineering, education, indexing, mathematics, surveying, statistics, and others are all represented in the following list of sample references: ALT, FRANZ L., Multiplication of Matrices, _Mathematical Tables and Other Aids to Computation_, vol. 2, no. 13, Jan. 1946, pp. 12-13. BAILEY, C. F., and others, Punch Cards for Indexing Scientific Data, _Science_, vol. 104, Aug. 23, 1946, p. 181. BOWER, E. C., On Subdividing Tables, _Lick Observatory Bulletin_, vol. 16, no. 455, Nov. 1933, pp. 143-144. BOWER, E. C., Systematic Subdivision of Tables, _Lick Observatory Bulletin_, vol. 17, no. 467, Apr. 1935, pp. 65-74. CLEMENCE, G. M., and PAUL HERGET, Optimum-Interval Punched-Card Tables, _Mathematical Tables and Other Aids to Computation_, vol. 1, no. 6, Apr. 1944, pp. 173-176.