FREE BOOKS

Author's List




PREV.   NEXT  
|<   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71   72   73   74  
75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   92   93   94   95   96   97   98   99   >>   >|  
s wood, and originally projected some two or three inches at each end. This stick is placed upright in a vice. The semi-globe is nailed to one end of the stick, upon which it rests, when the wire is passed through its center. It is now reversed, and the edges of the card rapidly covered with glue. The edges of the other semi-globe are instantly brought into contact, the other end of the wire passing through its center in the same way, and a similar nailing to the stick taking place. We have now a paper globe, with its own axis, which will be its companion for the whole term of its existence. The paper globe is next placed on its axis in a frame, of which one side is a semi-circular piece of metal; the horizon of a globe cut in half would show its form. A tub of white composition--a compound of whiting, glue, and oil is on the bench. The workman dips his hand into this "gruel thick and slab," and rapidly applies it to the paper sphere with tolerable evenness: but, as it revolves, the semi-circle of metal clears off the superfluous portions. The ball of paper is now a ball of plaster externally. Time again enters largely into the manufacture. The first coating must thoroughly dry before the next is applied; and so again till the process has been repeated four or five times. Thus, when we visit a globe workshop, we are at first surprised at the number of white balls, from three inches' diameter to three feet, which occupy a large space. They are all steadily advancing toward completion. They can not be hurriedly dried. The duration of their quiescent state must depend upon the degrees of the thermometer in the ordinary atmosphere. They cost little. They consume nothing beyond a small amount of rent. As they advance to the dignity of perfect spheres, increased pains are taken in the application of the plaster. At last they are polished. Their surface is as hard and as fine as ivory. But, beautiful as they are, they may, like many other beautiful things, want a due equipoise. They must be perfectly balanced. They must move upon their poles with the utmost exactness. A few shot, let in here and there, correct all irregularities. And now the paper and plaster sphere is to be endued with intelligence. What may be called the artistical portion of globe-making here commences. In the manufactory we are describing there are two skilled workers, who may take their rank as artists, but whose skill is limited, and at the same time
PREV.   NEXT  
|<   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   67   68   69   70   71   72   73   74  
75   76   77   78   79   80   81   82   83   84   85   86   87   88   89   90   91   92   93   94   95   96   97   98   99   >>   >|  



Top keywords:
plaster
 

beautiful

 

sphere

 

center

 
inches
 
rapidly
 

dignity

 
completion
 

perfect

 

spheres


advance

 

increased

 
polished
 

surface

 
application
 
amount
 

depend

 

degrees

 
thermometer
 

quiescent


duration

 

advancing

 

ordinary

 
atmosphere
 

consume

 
steadily
 

hurriedly

 

projected

 

portion

 

making


commences

 

artistical

 
called
 

endued

 

intelligence

 

manufactory

 
describing
 
limited
 

artists

 

skilled


workers

 

irregularities

 

correct

 

things

 
equipoise
 

originally

 
perfectly
 

balanced

 
exactness
 

utmost