Note 89 — Chapter III · THE POSITION OF NITROGEN IN AGRICULTURE.
Reading edition
According to the Agricultural Returns for 1888, the number of cows in milk in Great Britain amounted to 2,450,444. If we multiply this number by 22 the result is 54,000,000 lb., or in tons 24,107. This quantity represents 154,067 tons of ordinary commercial nitrate of soda.