138 REPORTS ON INVESTIGATIONS AND PROJECTS. 



Olive, Edgar W», University of Wisconsin, Madison, Wisconsin. Grant 

 No. 271. Researches on the life histories mid cytology of certain loiver 

 plants. (For previous reports see Year Book No. 2, p. xxvii ; Year 

 Book No. 3, p. 131, and Year Book No. 4, pp. 130-131.) $1,000. 



Abstract of Report. — Three papers, representing part of the writer's earlier 

 work as research assistant of the Carnegie Institution of Washington, have 

 been published, one on Oscillatoria and two on the structure and develop- 

 ment of Kmpusa. 



Several other papers have been partially completed, two on Diplophrys 

 and other colonial organisms, one on Empusa nmsccB, one on Ceratiomyxa, 

 and one on Basidiobolus. Some preliminary work on the rusts has shown 

 that the results of certain recent writers on the group are, at least in the 

 essentials, not contradictory, as has been supposed. 



Swingle, Walter T*, U. S. Department of Agriculture, Washington, D. C. 

 Grant No. 235. Investigation of the lines oj force in livi?ig cells ajid the 

 ejects of electromagnetic and electrostatic fields on szich lines of force. (For 

 previous report see Year Book No. 4, pp. 131-132.) $1,500. 



Abstract of Report. — The most important progress in connection with this 

 work during the past year has been the bringing up to date of the bibliog- 

 raphy of the literature of the cell. This index now comprises 6,774 cards, 

 being duplicate entries of 3,387 titles. These titles were copied photo- 

 graphically from the bibliographies of cytology and histology, published in 

 the Anatomischer Anzeiger from January i, 1900, up to date. Photographs 

 were also made of the bibliography in the second edition of Prof. K. B. 

 Wilson's work on the cell, which includes titles up to 1900. By means of 

 this new card index it is possible to find arranged under any author's name 

 practically all of the titles of his published work relative to cytology. This 

 is a matter of very great importance in a science which is progressing so 

 rapidly and which has such a scattered literature. Heretofore it has been 

 almost impossible to avoid overlooking some of the most recent and important 

 contributions on the subject owing to the difficulty of keeping track of the 

 literature relating to it. 



The importance of such a bibliography in the study of lines of force in the 

 living cell is very great, since it is a new point of view involving explana- 

 tions in very different terms from those given by most of the investigators 

 themselves — that is, a description or drawing considered of minor import- 

 ance by the author for the problems he had in view may prove to be of very 

 great import for demonstrating the existence of lines of force in the cell. 



Arrangements have been made to utilize new forms of the microscope for 

 the study of the minute details of cell structure. In this work the naphtho- 

 brom immersion lens, having a numerical aperture of 1.63, will be used for 

 visual examination of fixed material and the monochromatic lens for ultra- 



