Philosophical transactions, Vol. L. Part I. For the year 1757.: Giving some account of the present undertakings, studies, and labours, of the ingenious, in many considerable parts of the world.

Philosophical transactions, Vol. L. Part I. For the year 1757.: Giving some account of the present undertakings, studies, and labours, of the ingenious, in many considerable parts of the world.（Various, Royal Society (Great Britain) 著）属公有领域作品，本页面提供公版书免费下载，已通过夸克网盘 / 百度网盘分发。读者可一键转存至个人网盘，离线阅读或永久保存。