with a mixture consisting largely of tar,which is renewed every six months. The gravel bal-last has also received a partial covering of brokenlimestone, and by these means it is hoped that theformation of rust will be retarded. In the Brand-leite tunnel, in Thuringen, it was found that rails… … Tropic and Semltroplc Fruits and Nuts. For the first time the Census Office has made a specialInvestigation for the purpose of ascertaining the extentand value of the production of oranges, lemons, figs,almonds, cocoanuts, and other tropic and semitropicfruits and nuts as industries of the United…
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