ON ANTHROPOMETRIC INVESTIGATION IN THR BRITISH ISLES. 363 



machines are frequently tested by placing a standard weight on the plat- 

 form or scale and readjusted if necessary, there is no valid reason why 

 they should not be used. 



A platform spring weighing machine suitable for weighing school 

 children is made'^by Geo. Salter & Co., 101 Leadenhall Street, London, E.G. 

 It weighs up to 14 stones by ^ lb. 



A smaller machine for weighing infants is also made by the same firm. 

 This machine weighs up to 25 lb. by ounces. The infant is placed on a 

 table in a basket mounted on the top of the machine, which is conveniently 

 placed. 



For public schools or other institutions where speed and ease in 

 weighing are considered of more importance than saving in first cost a seat 

 ■>veighiug machine'of the spring type made by Henry Pooley & Son, Ltd., 

 Temple Street, Birmingham, may be recommended. This machine weighs 

 up to 24 stones by pounds, and when protected from shocks is very 

 accurate. 



General Remarks. 



Steelyard machines should be fitted with the best steel knife-edges. 

 Cheap'machines with cast-iron knife edges get out of order after being 

 used a short time. It is recommended that machines graduated in the 

 metric system should be used, and that all weights should be recorded in 

 this measure whene\"er possible. English measure can, however, be easily 

 converted into French by the use of a conijiarative table. 



Hkigut Mktkks. 



For measuring statures and the heights of various points of the human 

 body a considerable variety of apparatus is available. The simplest, 

 perhaps, is a set square sliding on a rod 2 metres in length and graduated 

 in millimetres. This rod may be fixed in a vertical position to a door 

 or wall when it is required to measure stature only. When it is proposed 

 to measure the heights of other points on the body the rod is preferably 

 detached so that it can be held in one hand and placed opposite the point 

 of the body to be measured. The rod may be fitted with a plummet to 

 ensure its being held vertical. By attaching a set square at the beginning 

 of the second meter, and making the lower half of the rod detachable, the 

 apparatus may be used as a sliding callipers for measuring the transverse 

 diameters of the body. An instrument of this kind is made by Messi's. 

 Aston & Mander, Gl Old Gompton Street, London. 



Short graduated rods which do not reach the ground, but are fixed 

 on doors or walls, are frequently used for measuring stature by applying 

 a set square to their front surface. Such apparatus, though very simple 

 and cheap, is liable to give inaccurate measurements : first, because 

 it may not be fixed at the correct height ; and secondly, because the 

 surface to which the set square is applied may not be vertical. 



A stature meter with a cast-iron pedestal fitted with levelling screws 

 is made by Home k Rowland, Troughton Road, Old Charlton, Kent, and 

 is very suitable as a permanent and fixed instrument for measuring the 

 stature of school children. 



A device for measuring stature as well as a large number of other 

 dimensions of the body, horizontal as well as vertical, is the Wall-meter 

 employed by Professor Cunningham in the Anthropometric Laboratory of 



