20 PHOTOGRAPHY FOR BIRD-LOVERS, 

 fitted to the shutter. A slip-knot is passed round 

 the little lever which is moved by the teat, and 

 on the line being gently pulled the shutter is 

 released. 



When working at a distance it is difficult to 

 know when the pull on the line has been suffi- 

 cient to work the shutter, and in this uncertainty 

 the pulling may be continued until the shutter is 

 damaged or the camera upset. To avoid the 

 possibility of this a short piece of thin cotton, only 

 sufficiently strong to work the shutter, may be 

 used to connect the line with the lever. Then if 

 the line is pulled too strongly the thread is broken, 

 the picture having first been secured, and no dam- 

 age to the apparatus can follow. 



In many cases where it is impossible to use a line 

 only, owing to the tangle of branches through 

 which it would have to pass and the friction which 

 might be caused, it is convenient, if the distance 

 be greater than the tubing will accomplish alone, to 

 employ a combination of both methods. All that 

 is necessary is a hinged lever either improvised as 

 required, or carried specially for the purpose. 

 The accompanying sketch shows the device. It 

 consists of two pieces of wood, some twenty 

 and twenty-one inches long respectively, hinged 

 together. When in use the tubing from the 

 shutter is passed out through the branches and 



