

MATERIAL INSTRUMENTS. 89 



The following are the cards required to carry out the system: 



1. The order card or ticket. 



2. The service card. 



3. The material card. 



4. The correspondence card. 



The first three are fully described hereafter. 



The Correspondence Card. 



This card, forming no essential part of the system proposed, 

 is used as a very convenient means of asking and answering the 

 thousand and one little questions constantly arising between the 

 different departments of any large administration, concerning which 

 it is not so essential to have an immediate reply as it is to ask the 

 question or to make the statement while the need of it is fresh 

 in one's mind. They are memoranda set in motion. 



One side is blank and the other bears a double column of the 

 titles and their abbreviations belonging to the persons most apt 

 to correspond. One column is headed " From " and the other 

 " To," so that a line drawn obliquely across the space between 

 serves both as a signature and an address. 



To continue the course of the card, as is often necessary, so 

 that question and answer may explain each other, the recipient 

 continues the line horizontally towards the left to his own title 

 and then obliquely again to the next in order of receipt, and so 

 on. To designate the originator of the question he should draw 

 the line through his own name. 



The messenger always takes the card to the person whose 

 abbreviated title is nearest to the end of the line. Blank spaces 

 are left for the insertion of such special names as may not be on 

 the printed list. The same arrangement is used in forwarding 

 other cards requiring action by different sets of hands. 



The actual card is about 4 \ in. x 5 1 in. 



