7C0 



G. — Morphology an«l classification of bacteria. 

 H. — Morphology and classification of Myxouiycetes. 

 I. — Exsiccati. 

 J.— Technique. 



The advantage of this arrangement is that all referenc'Cis to j^articn- 

 lar subjects are grouped together instead of being scattered through 

 the index. For example, the entries on diseases of fruits are indexed 

 together alphabetically according to authors, Avitli cross references to 

 other articles which treat of fruit diseases only as a matter of second- 

 ary importance. The section relating to preventives, remedies, etc., 

 it may be said incidentally, oc(;upies more space than any other in the 

 present nundier of the Journal, covering nine closely printed i>ages. 

 The following extract from the announ<*ement of the change in the index 

 will be of especial interest to the stations: 



Tiic index is de-signed especially to aid experiment station workers and others in 

 this conntry who do not have access to the more im])ortant literature on jdnnt dis- 

 ea.ses and allied subjects. In order to make the index more valuable, esiiecially as 

 regarils accessibility, it is suggested that the various items be cut out, pasted on 

 cards, and then arranged ulphabetieally, according to authors and subjects. For 

 this jmrpose we use the I^ibrary Assoeiation's standard cards No. :i2. 5 by 12.."> centi- 

 meters. Hy adopting this luethod new cards may be inserted at anytime, thus mak- 

 ing it ]>ossible to keep all of one author's writings togctlier or all that has been 

 written on any one subject. 



The cards thus prepared can, ifdesired.be intt with those of the (ien- 

 eral Index of Agricultural Litrratur*^ prepared by this Ollice. In Ihis 

 case special division cards should be used for the sidulivisions under 

 ])iseases of Plants (5.0). 



We commend the index to the ntt^^ntion of the stations, and suggest 

 that in (U'der to assist in making it complete coiiies of all station pni»li- 

 cations containing articles lelating to fungi be sent as .soon as issued 

 to the Division of Vegetable rathology. 



Several of the stations have issued iiulexcs to serirs of their i>ul»lica- 

 tions. This is a usi'ful thing to do, and it is in hv liope<l that it will 

 become a general practice. While this matter is in its formative stage 

 we wish to urge the desirability of acertain degree of uniformity in the 

 preparation of these indexes. On the whoh' it seems best that ea<'h 

 indexed volunu' should consist of the publications of a single year. In 

 this way all refen-nces to these volumes maybe made by j'itiug the year 

 of juiblication. For examjjle, if a scientilic jouriud «-itesan exi)eriment 

 by the Kansas Station, the reference would most conveniently reail: 

 Kansas Station lleport for 1802. Any other arrangement is likely to 

 lead to confusion. A little attention to the matter would also enable 

 the several stations to indrx the great mass of their material timler 

 categcM'ies stated in the same phraseology. The student who has had 

 occasion to look np Imiidreds of references on any snbi«'et will a]»|)re- 

 ciate what troulde is made by the necessity of conjecturing in what 



