F IELDS G-l and G-2 

 Columns 27 and 28 



exposed to radiation (Field E), or whether radiation was given directly and specifically to the organ in 

 Field H-l or to the tissue in Field I. Symbols N, Q, R, T, U, V, W, and X do not distinguish as to 

 whether the pretreatments (states) coded by these symbols apply to the organ in Field H-l or to the 

 tissue in Field I (if both Fields H-l and I are coded) except that it is probable in most instances that 

 when a tissue is given pretreatment or is in a special state, the organ of which it is a part received 

 the pretreatment or is in the same state. The same is true for Symbols 6, 8, B, C, D, E, J, and S, 

 except that the pretreatments (states) coded by these symbols are by their nature apt to be restricted 

 to refer to the organism as a whole. (The remaining symbols, 5, 7, 9, A, F, G, H, I, K, L, and P, 

 present no problem in reference to Fields E, H-l, and I, since the relationship is implicit in their 

 definitions. ) 



The ambiguity of reference of the symbols named could be avoided either by multiplying the 

 number of symbols of the field (e. g. , three symbols for radiation instead of only Symbol 4, one for 

 use when the organism as a whole is radiated, one for the radiation of the organ in Field H-l, and a 

 third for radiation of the tissue in Field I) or by having a Field G equivalent for each of Fields E, H-l, 

 and I. Since neither of these has seemed practical for the CBCC, the coding of Field G can be no more 

 specific than the definitions imply. Therefore, when Field H-l has an entry (with no entry in Field I) 

 and Field G is coded with any of Symbols 1, 2, 3, 4, 6, 8, B, C, D, E, J, M, or S, or when Fields 

 H-l and I are both coded and Field G is coded with any of Symbols 1, 2, 3, 4, 6, 8, B, C, D, E, J, 

 M, N, 0, R, S, T, U, V, W, or X, reference must be made to the written abstract on the code sheet to 

 ascertain whether it was the organism as a whole, the organ in Field H-l, or the tissue in Field I to 

 which the pretreatment was given or which is in the state indicated by the symbol. 



5. Conflicts in Field H-2 



Field H-2 has been endowed with two major uses and a third infrequent use. (See Divisions 2, 

 3, and 4 of the section, General Use, of Fields H-l and H-2 and Divisions 1 and 2 of the section, 

 Specific Directions and Explanations, of Fields H-l and H-2. ) For this reason, if Field H-2 should be 

 needed for more than one of these uses in a single code line, it is necessary to follow an established 

 pattern of preference to permit correct interpretation of the coding. These conflicts of Field H-2 are 

 discussed in Division 3 of Specific Directions and Explanations of Fields H-l and H-2. In short, any 

 organ specifically responding to the test compound which is not coded in Field H-l, but is coded in 

 Field H-2, with an asterisk (the 12 zone punch) in Column 30, is given preference over any other use 

 of Field H-2. An organ in a special experimental state (indicated by Field G-l or G-2) is given pref- 

 erence over an organ to which the test compound is administered (coded in Field S-3). Any organ that 

 can not be coded in Field H-2, because of such a conflict, must be carefully recorded in the written 

 abstract of Field G or Field S-3. 



In interpreting coding of Field H-2, note first if Column 30 has a 12 zone punch; if there is 

 none, note whether any of Symbols 0, P, B, S, or T are coded in Field G- 1 or G-2. If so, the Field 

 H-2 entry is an organ in the state described by that Field G symbol; if not, it is an organ to which the 

 test compound was administered as described by the symbol in Field S-3. 



6. An incidental pathological condition vs. a TREATED pathology 



The Symbols 5, 7, B, C, D, N, 0, and S are not used when the pathological conditions that 

 these items can suggest are coded in Field E. These code symbols are used only when the pathological 

 condition is incidental (i. e. , is not being treated) and, therefore, is not coded in Field E. 



7. Adaptations (Symbol 1 ) 



Especially in the case of tests in the laboratory, animals must often become familiar with their 

 surroundings and handling before they are tractable or can respond suitably to treatment. Such 

 conditioning of plants to laboratory conditions for certain tests is not unusual. If this, or any adaptation, 

 is described by the author as an important factor, it should be indicated by Symbol 1. 



8. Nutrient and hormone deficiencies and excesses, as incidental conditions vs. treated conditions 



The code symbols, B (hormone deficient), C (hormone excess), D (nutrient deficient), and E 

 (state of inanition), are used when the deficiencies or excesses are NOT the specific diseases treated. 



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