Yazar
john voelcker
5 cilt bulundu.
Cilt sonuçları
The valuation of unexhausted manures obtained by the consumption of foods by stock
Voelcker, John Augustus. · J. Murray
41 sayfa · 1903
Economic aspects / Economic aspects of Fertilizers / Farm manure / Fertilizers
Contributions to agricultural chemistry
John Christopher Augustus Voelcker · Printed by W. Clowes
Sayfa sayısı yok · 1858
Agricultural chemistry / Composition / Fertilizers / Soils
Interim report of the commissioners appointed in 1898 to inquire and report what methods of treating and disposing of sewage (including any liquid from any factory or manufacturing process) may properly be adopted ...
Iddesleigh, Walter Stafford Northcote 2d Earl of, George McGowan, · H. M. Stationery off., prinnted by Wyman and sons