...under the latter Emperors, fhips feem to have been of little other ufe than to tranfport foldiers. Navigation could not be carried to any great degree of certainty, without the cojnpafs; which was unknown to the ancients. The wonderful quality by which a needle, or fmall bar...

...difcouraged; till under the latter Emperors, Ships feem to hive been of little other Ufe than to tranfport Soldiers. Navigation could not be carried to any great degree of Certainty, without the Compals ; which •was unknown to the Ancients. The wonderful Quality by which a Needle, or fmall Bar...

...difcouraged; till under the latter Emperors, Ships feem to have been of little other Ufe than to tranfport Soldiers. Navigation could not be carried to any great Degree of Certainty, without the Compafs ; which •was unknown to the Ancients. The wonderful Quality by which a Needle, or fmall Bar...

...under the latter emperors, fhips feem to have been of little other ufe than to tranfport foldiers. Navigation could not be carried to any great degree of certainty without the compafs, which was unknown to the ancients. The wonderful quality by which a needle, or fmall bar of...

...under the latter emperors, fhips feem to have been of little other ufe than to tranfport foldiers. Navigation could not be carried to any great degree of certainty without the compafs, which was unknown to the ancients. The wonderful quality by which a needle or fmall bar of...

...only on war and conquest, as their empire increased, commerce was discouraged; till under the latter emperors, ships seem to have been of little other...freely by equilibration on a point, always preserves the meridian,and directs it-> two ends north and south, was discovered, according to the common opinion,...

...only on war and conquest, as their empire increased, commerce was discouraged ; till under the latter emperors, ships seem to have been of little other...of certainty without the compass, which was unknown 'o the ancients. The wonderful quality by which a needle or small bar-of steel, touched with a loadstone...

...only on war and conquest, as their empire increased, commerce was discouraged ; till under the latter emperors, ships seem to have been of little other...freely by equilibration on a point, always preserves the meridian, and directs its two ends north and south, was discovered according to the common opinion...

...only on war and conquest, as their empire increased, commerce was discouraged ; till under the latter emperors, ships seem to have been of little other...freely by equilibration on a point, always preserves the meridian, and directs its two ends north and south, was discovered according to the common opinion...

...only on war and conquest, as their empire increased, commerce was discouraged; till under the latter emperors, ships seem to have been of little other...freely by equilibration on a point, always preserves the meridian, and directs Jits two ends north and south, was discovered according to the common opinion...