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301. 10296 10296 Sir Aurel Stein's account focuses on Hamun lake and the Band-i-Seistan. Hamun lake, which fluctuates throughout the year, produces fertile soil noted for its lack of salt. However, with the shifting bed of the Helmand river, areas once thriving have become desert. Stein recommends the usage of barrages to control and divert river discharge to previously abandoned plots.

302. 409 409

303. 5011 5011

304. 10297 10297 Arnold Talbot Wilson explores the importance of qanat systems, or underground tunnels. He believed the subterranean tunnels were more beneficial than fields irrigated by streams due to decreased loss through evaporation. Similar to Egypt, who is positioned at the delta of the Nile, Wilson asserts that Iran can use qanats to harness the resources of the Helmand.

305. 5012 5012

306. 10298 10298 Asia describes Laurence Dudley Stamp's observations while traveling through Seistan, including the desertification of previously irrigated fields and the gradual disappearance of Lake Hamun.

307. 10312 10312 The file contains technical information regarding the Helmand river dispute, January 18, 1950.

308. 4345 4345

309. 5013 5013

310. 10300 10300 Iran introduces William S. Haas's recommendations for Persian agriculture. Through utilizing small streams and rivers, or the present qanat systems, Iran can expand the area of irrigated lands. This would allow farms to produce enough crops and animal products to feed citizens and make revenue through exporting commodities.

311. 4346 4346

312. 5221 5221

313. 10310 10310 Marchant gives a general overview of Afghan and Persian Seistan (presently Afghan Chakhansur and Iranian Seistan), including historical background of the Helmand river and major weirs, Band-i-Kamal Khan and Band-i-Seistan. The overview also translates Persian phrases such as dasht, or desert, and rud, or river.
The technical information page integrates and compares data collected by Tate, Iranian, and Afghan studies regarding land cultivated, population, lake area, and water quantity.

314. 10338 10338

315. 4559 4559

316. 4347 4347 Sanitized

317. 10353 10353 The Iranian and Afghan calendar page assists readers with converting dates from ancient and modern solar calendars to a "Christian" Gregorian calendar.
The equivalents page shows the equivalents for measurement units used in reports (ex. 1 cu in = 16.39 cm³).

318. 4560 4560

319. 4348 4348

320. 10295 10295 The file contains:
a. Treaty of Frontier Delimitation, signed August 14, 1925
b. Memorandum, Saar boundary protocols of 1926
c. Protocol regarding the German - Saar frontier, signed November 13, 1926
d. Protocol regarding the Franco - Saar frontier, signed November 13, 1926
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