Page 174 buck-wheat standardised to buckwheat
Pages 196, 232, 234, 235, 237, 238, 241 sub-soil standardised to subsoil
Page 204 ? Added after Mineral in the question section
Page 211 water tight standardised to water-tight
Page 223 Second 6. changed to 7.
Page 232 oxydation standardised to oxidation
Page 266 Period added after lbs in 1620 lbs rye straw
Page 272 Title No. XVI. added to table
Page 273 10,000 corrected to 100.00
Page 290 accurracy corrected to accuracy