Evaluation of the Technicon block digestor system for total kjeldahl nitrogen and total phosphorus /

Issued Feb. 1978.

The solubility of helium in lithium and potassium /

"Contract AT(30-1)-2789."

The three sludge system for nitrogen and phosphorus removal /

"Presented at the 44th Annual Conference of the Water Pollution Control Federation, San Francisco, California (October, 1971)"--P. 1.

Response of millet to nitrogen and irrigation; an application of simulation to the problem of weather uncertainty,

Mode of access: Internet.

Carbonisation of seaweed as a preliminary to the extraction of iodine and potassium salts,

Mode of access: Internet.

Report of preliminary investigations on the metabolism of nitrogen and carbon in the human organism, with a respiration calorimeter of special construction.

Mode of access: Internet.

Nitrogen and carbon changes in Great Plains soils as influenced by cropping and soil treatments /

Chiefly tables.

Phosphoric acid, phosphates and phosphatic fertilizers.

Includes bibliographies.

A review of the patents and literature on the manufacture of potassium nitrate with notes on its occurrence and uses /

"July 1934."