INTRODUCTORY I44-7 



The new committee was instructed by the Society to make a con- 

 servative revision of the chart and at the same time to draw up a 

 manual of methods to be used in connection with it. At the 1914 

 meeting of the Society, therefore, a chart was presented for approval, 

 much like the 1907 chart except for its more logical arrangement of 

 data. This chart was given the Society's endorsement and was issued 

 during 1915. 



The 1914 chart was printed on a sheet with its back entirely blank, 

 the glossary previously on the back having been omitted. The com- 

 mittee gave as the reason for this that the glossary should be included 

 in the manual on methods shortly to be published. The publication 

 of this manual was delayed, however, pending investigation of the 

 methods to be included in it. This investigation of methods was to 

 be undertaken not only for the sake of the manual but also as a pre- 

 liminary step toward radical revision of the chart, which was felt to 

 be badly needed. Early in 1917, however, and before this program 

 could be carried out, the chairman of the committee was forced by 

 pressure of other duties to drop the work. As he wished to remain 

 on the committee, however, no change in membership was made, 

 but H. J. Conn was asked to become chairman. 



The committee then undertook the first step toward the preparation 

 of a manual on methods. A report was presented at the 1917 meeting, 

 giving the methods recommended at that time for use with the chart. 

 The report was printed in the Journal of Bacteriology, March 1918, 

 and was subsequently sold by the Society in the form of reprints. 

 This report was considered a preliminary manual on methods. 



The committee proposed at the same time a much simplified chart 

 in the form of a four page folder, which it recommended for use in 

 instruction until the official chart could be given the revision it 

 needed. This chart was not endorsed by the Society; but was printed 

 and sold by the Society for two or three years. 



This same committee (but now called the Committee on the 

 Descriptive Chart) issued another report on methods which appeared 

 in the Journal of Bacteriology, March 1919, dealing with the Gram 

 stain, production of acid, and the reduction of nitrates. At the 1919 

 meeting it issued a further report which appeared in the Journal of 

 Bacteriology, in two parts, March and May, 1920. The first part of 

 the report was a revision of the one which had been published in 

 March 1918, and was sold as a revised manual of methods until the 

 reprints were exhausted in 1922. 



At the 1920 meeting the Committee on the Descriptive Chart was 

 discharged with the understanding that its functions would be taken 



