The Universal Preceptor: Being a General Grammar of Arts, Sciences, and Useful Knowledge ...A. Phelps, 1826 - 312 страница |
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Страница 30
... piece of packthread cloth ; and so , completely illustrate the principle of weaving .. 118. After the piece has been woven , it requires to be bleached by the air and sun , or by exposure to some acid . It is afterwards , if desired ...
... piece of packthread cloth ; and so , completely illustrate the principle of weaving .. 118. After the piece has been woven , it requires to be bleached by the air and sun , or by exposure to some acid . It is afterwards , if desired ...
Страница 52
... powder ; but a ball goes the fartherest when the piece is elevated to an angle of 45 degrees ; and there are tables constructed for every degree of elevation . In battle , it is found that not more than 52 ART OF WAR .
... powder ; but a ball goes the fartherest when the piece is elevated to an angle of 45 degrees ; and there are tables constructed for every degree of elevation . In battle , it is found that not more than 52 ART OF WAR .
Страница 63
... piece of metal given to a man to make one pin , he could scarcely do it in a day . In pin manufactories , however , each pin passes through twenty - five hands : one draws out the wire , another straightens it , another cuts it ...
... piece of metal given to a man to make one pin , he could scarcely do it in a day . In pin manufactories , however , each pin passes through twenty - five hands : one draws out the wire , another straightens it , another cuts it ...
Страница 74
... piece , a sailor can now ascertain his position in any part of the seas within half a mile . 242. So expert are navigators become in our days , that a ship has sailed from Portsmouth to Calcutta in 55 days , a voyage which formerly ...
... piece , a sailor can now ascertain his position in any part of the seas within half a mile . 242. So expert are navigators become in our days , that a ship has sailed from Portsmouth to Calcutta in 55 days , a voyage which formerly ...
Страница 168
... piece of net - work , and no sting . e . Hymenoptera , insects agreeing in their charac- teristics with the preceding , except that these are arm- ed with a sting . f . Diptera , insects having two wings , and two ele- vated alteres ...
... piece of net - work , and no sting . e . Hymenoptera , insects agreeing in their charac- teristics with the preceding , except that these are arm- ed with a sting . f . Diptera , insects having two wings , and two ele- vated alteres ...
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