FIELD Q 

 Column 52 



3. In vitro experiments 



Field Q may be used to record the inoculum size for in vitro experiments as well as in vivo 

 experiments. 



4. Symbols available for additional items of Field Q 



Since none of the IBM zone punches have been used for special purposes, any of Symbols A 

 through Z are available for additional use in Field Q. However, as the size ranges are now, no further 

 symbols are needed for that purpose. 



5. File of coded biology data on IBM punched cards, arranged according to symbols for inoculum 

 size 



The CBCC has no file of coded biology data arranged by Field Q symbols, because of the 

 improbability of beginning an information search by looking for inoculum size. 



6. Double coding in Field Q 



If the evaluations of two or more tests are so similar that they can be coded by the identical 

 symbol in Field Y and the only difference between the two or more tests is the size of the inoculum, 

 all the inoculum sizes may be coded in Field Q and all punched on the same IBM card. This is re- 

 ferred to as double coding. For example, if the evaluation coding is the same regardless of whether 

 the inoculum is 10, 50, or 100 cells, Field Q is coded with Symbol 2; whether the inoculum is 10, 100, 

 or 500 cells, Field Q is coded with Symbols 2 and 3; whether with 100, 1000, or 10, 000 cells, Field Q 

 is coded with Symbols 2 and 4. (See Division 1. ) 



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