HAND AND OTHER APPARATUS. 



49 



About six feet from one wall and twelve from the 

 other, a post A, fig. 21, reaching from floor to ceil- 

 ing is erected, two more posts B and C are placed 

 opposite to it against the walls, and two or three 

 long laths are fastened at equal intervals horizontally 

 between A and B. 



Fig. 21. 



Half way between A and C another post D is 

 fixed, and about seven feet from the floor a cross 

 beam between A and D ; a wooden frame fitting 

 accurately in this interval is hinged to A, and forms 

 the basis of the future door. 



The whole is covered with two thicknesses of old 

 newspaper on the outside, care being taken that they 

 are firmly pasted to both floor and ceiling; when dry 

 the part covering the frame- work of the door, is cut 

 along the edges and the door opened. 



The inside is now covered in the same way, and 

 when dry the process repeated inside and outside 

 with the thickest tarred paper. A black curtain is 



E 



