The Technical World Magazine, Volume 4Technical World Company, 1906 |
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Page 10
... means of defense , and are preyed upon by fishes , water fowl , and crustacea . When they have grown to a certain size , they - or rather the remnant of their original number- renounce locomotion forever , and attach themselves ...
... means of defense , and are preyed upon by fishes , water fowl , and crustacea . When they have grown to a certain size , they - or rather the remnant of their original number- renounce locomotion forever , and attach themselves ...
Page 18
... means the center of the track from end to end , in order to mini- mize the atmospheric effects which in- terfere more or less with all astronomical observations . Consequently , in this par- ticular eclipse , Spain and Northern Af- rica ...
... means the center of the track from end to end , in order to mini- mize the atmospheric effects which in- terfere more or less with all astronomical observations . Consequently , in this par- ticular eclipse , Spain and Northern Af- rica ...
Page 41
... means of leveling screws , and revolves in a complete circle , besides providing a tangent screw movement to move the table in a small arc , very slowly . With the plane table , is used a survey- ing instrument called an alidade . This ...
... means of leveling screws , and revolves in a complete circle , besides providing a tangent screw movement to move the table in a small arc , very slowly . With the plane table , is used a survey- ing instrument called an alidade . This ...
Page 42
... means of which elevations are determined when necessary . When a plane - table party goes into the field , it is supplied with a blank sheet -the most important and most carefully guarded part of the equipment . This sheet is made of ...
... means of which elevations are determined when necessary . When a plane - table party goes into the field , it is supplied with a blank sheet -the most important and most carefully guarded part of the equipment . This sheet is made of ...
Page 43
... means of its leveling screws , with the aid of a level located upon the base of the alidade . Mean- while , some other member of the party has been engaged with glasses in locating other signal points about the coast - line -or across ...
... means of its leveling screws , with the aid of a level located upon the base of the alidade . Mean- while , some other member of the party has been engaged with glasses in locating other signal points about the coast - line -or across ...
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