FOR SITTERS IN MILD CLIMATES. 81 



is renovated and prepared for the use of the layers, the 

 snap hook is detached from the eye and attached 

 to a similar eye at the end of an arm belonging to a 

 shaft, m, which is the duplicate of the shaft I, and which 

 operates as the latter does, only it is never used to bring 

 doors to the first position. The shaft, m, is to put the 

 doors leading to layers' nests into the second position 

 (closed) before liberating the sitters, this precaution 

 being necessary to prevent sitters from blundering into 

 the nests of layers. As before remarked, the sitters are 

 let out toward night, the layers having finished business 

 for the day. 



The distances the shafts m and I are, respectively, 

 from the point where the cord is attached to the door, 

 h, must have careful attention ; m can be the nearest to 

 the alley and I the highest, and both must be so placed 

 that the cord will exactly reach from arm 2, on both 

 shafts, to the door, when these arms are at the second 

 position. Then the first and third positions will take 

 care of themselves, and the length of cord having been 

 once fixed upon need never be changed. The cords are 

 small and may be the best quality cotton shoe string, or 

 other stout, non-stretchable material. Bore a three- 

 sixteenth inch hole, slantingwise, through h, in which 

 insert a homemade affair like a violin peg to attach the 

 cord to, so that by turning the peg you can wind or 

 unwind the cord and it may be readily brought to the 

 exact length necessary to completely close the doors and 

 also operate the figure 4's with precision. 



When you arrive on the scene, the sitters' doors are 

 supposed to be at the second position (closed) and the 

 layers' doors at third position (nearly full open). The 

 order then proceeds as follows : Layers' doors, you throw 

 to second position (closed) ; sitters' doors, immediately 

 to third position (nearly full open) ; after a short inter- 

 val, sitters' second position (closed) ; after a longer 



