ON THE RKNTING OF CINCHONA BOTANIC STATION IN JAMAICA, 231 



year's rent. They think that the tenns of the letter of the Colonial 

 Secretary of June 22, 1915, should be accepted. They therefore ask 

 that they be reappointed for the coming year, and that a grant of 

 121. 10s. be made to cover the rent at the reduced rate. They also 

 report that an application for the use of the station by a British 

 botanist for the summer of 1916 is in view, but naturally, as the 

 applicant is of military age, it must be contingent upon the state of v^ar. 



Sections of Australian Fossil Plants. — Report of the Committee, 

 consisting of Professor W. H. Lang (Chairman), Professor 

 T. G. B. OsBORN (Secretary), Professor T. W. E. David, 

 and Professor A. C. Seward, appointed to cut Sections of 

 Australian Fossil Plants, with special reference to a specimen 

 of Zygopteris from Simpson's Station, Barraha, New South 

 Wales. 



The Committee report that after some delay occasioned^ by the disturb- 

 ance of communication between Australia and the United Kingdom the 

 specimen was sent to England for cutting. Extensive series of sections 

 have been prepared involving a portion of the block, and have shown 

 the specimen to be of unique interest. A preliminary account of its 

 structure is presented by Mrs. Osborn to this meeting. The Committee 

 ask for reappointment for another year without further grant, but with 

 permission to carry forward the unexpended balance to allow the work 

 to be completed. 



The Influence of varying Percentages of Oxygen and of various 

 Atmospheric Pressures upon Geotropic and Heliotropic Irrit- 

 ability and. Curvature. — Report of the Committee, consisting 

 of Professor F. O. Bower (Chairman), Professor A. J. 

 Ewart (Secretary), and Professor P. F. Placeman, 

 appointed to carry out a Research thereon. 



The grant allocated at the meeting in Australia was drawn locally, 

 and an account of its expenditure, and of the progress of the work, 

 is contained in the following letter from Professor Ewart : 



The University of Melbourne. 



June 14, 1915. 

 Dear Prof. Bower, — T enclose herewith statement of expenditure 

 from British Association Eesearch Grant, practically the whole of 

 which has been expended. It took so long, however, to obtain all the 

 apparatus required, that most of the work done has been of a prelimin- 

 ary nature, such as determining the range of variation with different 

 material, and material in various stages of development, the distinction 

 between direct and indirect effects of altered pressure, the maximum 

 pressures to arrest growth, and the minimum pressure to accelerate 

 it. We have a basis to determine the influence of altered pressure 



