. Elementary agriculture. Agriculture. TILLAGE AND FARM MACHINERY 109 is soft and will not take on a sharp edge, yet it made far better tools than did sticks. The next step was made when it was found that by mixing tin ore with copper a mnch harder tool could be made, with a better edge. This mixture is called bronze. Bronze tools were used for untold ages until some clever man found out how to make a fire hot enough to smelt iron ore. When iron tools and weapons were made, we have the beginning of all the wonderful machinery in use to-day. The First Iron Tools. Iron tools were few and costly
. Elementary agriculture. Agriculture. TILLAGE AND FARM MACHINERY 109 is soft and will not take on a sharp edge, yet it made far better tools than did sticks. The next step was made when it was found that by mixing tin ore with copper a mnch harder tool could be made, with a better edge. This mixture is called bronze. Bronze tools were used for untold ages until some clever man found out how to make a fire hot enough to smelt iron ore. When iron tools and weapons were made, we have the beginning of all the wonderful machinery in use to-day. The First Iron Tools. Iron tools were few and costly at first, because the warriors needed all the iron they could get for their weapons. But men learned at last to make hillside furnaces for smelt- ing iron ore, and then the farmer got a few iron. Jig, 57, Fut the soil in good tilth with a disk harrow before Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nida, William Lewis. [from old catalog]. Chicago, A. Flanagan company
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Keywords: ., bookcentury1900, bookdecade1910, bookpubl, booksubjectagriculture
