< Science (journal)
  • No. 1201, Jan. 4, 1918, pp. i-viii+1-26
  • No. 1202, Jan. 11, 1918, pp. 27-50
  • No. 1203, Jan. 18, 1918, pp. 51-74
  • No. 1204, Jan. 25, 1918, pp. 75-100
  • No. 1205, Feb. 1, 1918, pp. 101-124
  • No. 1206, Feb. 8, 1918, pp. 125-150
  • No. 1207, Feb. 15, 1918, pp. 151-174
  • No. 1208, Feb. 22, 1918, pp. 175-200
  • No. 1209, Mar. 1, 1918, pp. 201-224
  • No. 1210, Mar. 8, 1918, pp. 225-248
  • No. 1211, Mar. 15, 1918, pp. 249-272
  • No. 1212, Mar. 22, 1918, pp. 273-298
  • No. 1213, Mar. 29, 1918, pp. 299-324
  • No. 1214, Apr. 5, 1918, pp. 325-348
  • No. 1215, Apr. 12, 1918, pp. 349-374
  • No. 1216, Apr. 19, 1918, pp. 375-398
  • No. 1217, Apr. 26, 1918, pp. 399-422
  • No. 1218, May 3, 1918, pp. 423-446
  • No. 1219, May 10, 1918, pp. 447-470
  • No. 1220, May 17, 1918, pp. 471-494
  • No. 1221, May 24, 1918, pp. 495-520
  • No. 1222, May 31, 1918, pp. 521-546
  • No. 1223, Jun. 7, 1918, pp. 547-570
  • No. 1224, Jun. 14, 1918, pp. 571-596
  • No. 1225, Jun. 21, 1918, pp. 597-622
  • No. 1226, Jun. 28, 1918, pp. 623-648
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