Accession No

4791

Brief Description

botanical wallchart showing table of results for a drainage tank experiment, by G. B. 'Herbert' Newham, English, 20th century

Origin

Cambridge, England

Maker

Newham, G. B. 'Herbert'

Class

natural history; prints

Earliest Date

1919

Latest Date

1967

Inscription Date

Material

cloth; paper

Dimensions

breadth 1520mm; height 925mm

Special Collection

Botanical teaching diagrams from Dept. of Plant Sciences

Provenance

Transferred from the Department of Plant Sciences, University of Cambridge.

Inscription

‘DRAINAGE TANK EXPS. (Hendrick) Materials Applied & Recovered.
stated as Pounds per Acre First Period.’(top)

Description Notes

Botanical wallchart showing table of results for a drainage tank experiment, by Newham, English, 20th century.

Table of results of experiments on the chemical composition of soil using drainage tanks. Table is outlined in blue crayon, with text in a black italic hand.
The text, though not the data, were outlined in pencil before being inked in, and the pencil marks have not been erased.
The amount of different chemicals recovered from a control ‘unmanured’ run is compared with the amounts added and later recovered from three other runs (in which sulphate of ammonia, superphosphate, and muriate of potash were added). The table was drawn with space for an extra run, but no data are entered.
The compounds investigated were nitrogen as ammonia, nitrogen as nitrate, phosphoric acid, sulphuric acid, chlorine, lime, magnesia, potash, and soda.
Title across top.

References

Events