MATERIAL INSTRUMENTS. 91 



Abbreviations of Title. 



Each shop or department is supposed to contain not over 99 

 workmen. Then, each department is supposed to have a rep- 

 resentative number, which may well be given in the order followed 

 by the work. Thus at Frankford Arsenal 



1 stood for the office; 



2 for the machine shop ; 



3 for the case shop ; 



4 for the loading shop ; 



$ for the carpenter shop ; 



6 for the paint shop ; 



7 for the laborers or outside department. 



This arrangement would be varied according to the work of 

 the place. Frankford Arsenal is selected throughout this dis- 

 cussion as a type, not only for its associations, but because the 

 intrinsic complexity of the operations which are there recorded 

 makes it probable that a method which is suited to its special 

 needs will also serve more elementary organizations by omitting 

 such portions as they do not require. 



The men are numbered according to the department in which 

 they are employed; thus the chief clerk is 101, the next clerk 

 1 02, and so on; the foreman of the machine shop is 201, and 

 the machinists 202, 203, and so on. A man's number thus tells 

 at a glance where he belongs. 



But numbers are not exclusively used for this purpose. The 

 officers of the arsenal, the principal clerks, and the keepers 

 of the principal magazines are known by their initials, as seen on 

 the back of card. This does not prevent their being borne by 

 their numbers also on the rolls of the department to which they 

 belong. 



Lastly the outside world is designated by Z. This includes 

 every person or agency not under the jurisdiction of the Com- 

 manding Officer. 



Signatures by Punching. 



The ordinary railroad ticket punch affords the means of affixing 

 a positive, permanent, distinctive, and ready signature to all cards 



