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    2 J Twenty-eighth Annual Repwf of NLG  
.   .  
  1_ (a_ b, C.) i ~  
  a. The continuation of the study of the root nodule organ-  
  ism of alfalfa and its relation to the corresponding  
  organisms of sweet clover and red clover. "  
  ‘ b. The completion of our studies on the life history of the  
    COTH-€&I' worm. — ( .  
    g c. The locust borer.  
 Qt, - Messrs. Garman, Jewett, Niswonger and Miss Didlake. ··
  2. Contagious abortion in horses and cattle and immuniza— ·
  ' tion against this disease. Messrs. Good and W. V. Smith. }
  3. The rendering available of the potassium of insoluble  
  silicates by the action of soil bacteria and yeasts,`also the J
  rendering available of potassium in soils under ordinary
  conditions. Drs. Peter, Healy and Blumenthal.
  4. The occurrence of sulfur in plants and soils and the signi- p
  7  Hcance of this element to permanent soil fertility, and the
  determination experimentally of the best and most eco-
  nomical sulfur compound to employ in·correcting a de-
  53*  liciency of sulfur in any soil. Mr. O. M. Shedd.
  5. The translocation of mineral matter of plants. Dr. G. D.
  Buckner. ·
  6. The occurrence and distribution of barium in the vege-
  table kingdom and the part, if any, played by barium in
   ':  the growth of plants; the possible eifect of this element
  in stimulating the production and growth of the root
  nodules of leguminous plants. Mr. J. S. McHargue.
  7. The occurrence and distribution of manganese in plants,
    especially in the harder epidermal tissues of various parts
  -· of plants, and the possible significance of manganese in
  the production of such tissues. Mr. J. S. McHargue.
  8. The study of clover bloat or tympany of the rumen in U
  cattle and its cure by means of formaldehyde, urotropin or ‘
  hexamethylenc-tetramine. Dr. Healy. 1
  Considerable progress has been made in all these studies and, ,
    in addition to the publications already issued on these subjects,
  may be mentioned those of the past year on the locust borer _
 _. (second biennial report of the State Forester), clover bloat