This dried material they would then grind to a fine powder, and after they had mixed it up well with a mysterious but inoffensive brown rock which they brought in and ground up by the hundreds of carloads for that purpose, the substance was ready to be put into bags and sent out to the world as any one of a hundred different brands of standard bone phosphate.

Can we suppose that the formation of rudimentary teeth which are subsequently absorbed, can be of any service to the rapidly growing embryonic calf by the excretion of precious phosphate of lime?

Salters was mainly agricultural; for, though he read "Josephus" and expounded it, his mission in life was to prove the value of green manures, and specially of clover, against every form of phosphate whatsoever.