Bulletin - Bureau of Chemistry Volume 142-154

Bulletin - Bureau of Chemistry Volume 142-154

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ...3 liters ofwater. In this way approximately 1,000seeds were used in each pan. The preliminary washing removed all of the readily. soluble salts, the actual amounts so removed, as has been shown by the authors in previous experiments 1 of this kind, being quite large. The distilled water was prepared especially for this purpose and a small amount of carbon black was placed in each pan. After some preliminary work a set of 13 pans was started, as fol'lows: Solution 1. Distilled water. Solution 2. Distilled water + 0.5 gram of calcium carbonate. Solution 3. 150 parts per million of sodium nitrate. Solution 4. 150 parts per million of sodium nitrate + 0.5 gram of calcium carbonate. Solution 5. 150 parts per million of potassium chlorid. Solution 6. 150 parts per million of potassium chlorid + 0.5 gram of calcium carbonate.' Solution 7. 150 parts per million of potassium sulphate. Solution 8. 150 parts per million of potassium sulphate + 0.5 gram of calcium carbonate. Solution 9. 10 parts per million of hydrochloric acid. Solution 10. 10 parts per million of hydrochloric acid + 0.5 gram of calcium carbonate. Solution 11. 10 parts per million of sulphuric acid. Solution 12. 10 parts per million of sulphuric acid + 0.5 gram of calcium carbonate. Solution 13. 150 parts per million of sodium nitrate + 75 parts per million ot potassium sulphate. FIRST CROP OF SEEDLINGS. These cultures were started January 24 and grown until February 2. The plants were then harvested, representative samples were selected and photographed, and the others were dried, weighed, and prepared for analysis. The photographs are shown in Plates I and II, the controls being the same in each case. The solutions were then made up to volume, 500 cc withdrawn for...show more

Product details

  • Paperback | 438 pages
  • 189 x 246 x 23mm | 776g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236971310
  • 9781236971319