The SciencesOctober 20, 1917
Potash-What we are doing about it
The Many Expedients by which we are Contriving to get Along Without Germany
[Potash is a vital ingredient for agriculture]
Stories by Harlow Bradley
Potash-What we are doing about it
The Many Expedients by which we are Contriving to get Along Without Germany
[Potash is a vital ingredient for agriculture]