157 



The disease caused by the germ from the cultures did uot coincide 

 very closely with that from natural infection, and there is still doubt if 

 the two be the same. 



No preventive measures can be suggested with the limited knowledge 

 of the disease yet available. 



Device for Supporting a Pasteur Flask. 

 By Katherine E. Golden. 



iS'OTES ON THE MICROSCOPIC STRUCTURE OF WoODS. 

 By Katherine E. Golden. 



Movement of Protoplasm in the Hyph.e of a Mould. 



By Katherine E. Golden. 



Description of Certain Bacteria Obtained from I^odules 

 OF Various Leguminous Plants. 



By Severance Burrage. 



(A preliminary study on the constancy of the distribution of bacterial species in definite 

 species of leguminous plants.) 



It has been quite thoroughly proven that several different species of 

 bacteria may be found in the nodules of various leguminous plants. The 

 following questions, however, have not, it seems to me, been definitely 

 settled with regard to them: 



Does the same species of bacteria always occur in the same species 

 of legume? 



Does the same species of bacteria always occur throughout all the 

 nodules on the same plant of any species of legume? 



Does the same species of bacteria always occur in the nodules of all 

 the plants in a field planted with one species of legume? 



