ADVISORY committee; ON GEOPHYSICS 4I 



ment, and researches, the director}'- could adjust the actual expen- 

 ditures to buildings, equipment and research in such a way as to 

 secure the best adaptations and most fruitful results. This sugges- 

 tion would at once simplify the work of the executive committee, 

 while it will confer responsibility and corresponding facilities upon 

 the directory. Under this plan it would be possible for the trus- 

 tees to fix upon a definite 5^early apportionment to the researches 

 indicated. 



These suggestions are in the main equally applicable to the ad- 

 ministration of researches in geology, physics, and other sciences in 

 respect to which a common plan will doubtlessibe adopted. They 

 also lead to the consideration of the administrative limits of depart- 

 ments and the working relations between the departments, as these 

 must be determined in selecting formal modes of control. 



Relative to the definition of departments, their working relations 

 to eaeh other, and the specific forms of administration of the inves- 

 tigations in geology, geophysics, and physics, three plans have been 

 under consideration b)' the joint committee : 



(i) The first plan proposes that there be directories correspond- 

 ing to the existing advisory committees. 



(2) The second plan contemplates the merging of the administra- 

 tion of the investigations in geophysics and geology in a common 

 enterprise, to be administered as a unit by a single directory. 



(3) The third plan approved by the committee lies between these 

 two, and proposes a directory for geology and geophysics in two 

 sections of largely identical membership, thelsection of the directory 

 in charge of investigations in geology to consist of three members, 

 who shall be experienced geologists of wide familiarit}^ with geologi- 

 cal problems ; the section of the director}^ in charge of the geophys- 

 ical laboratory to consist of the above, the head of the proposed 

 laboratory of geophysics as an ex -officio member ; also a member of 

 the board of trustees of the Carnegie Institution as an ex-officio 

 member, together with an expert physicist, and an expert chemist, 

 these two to be presumably, though not necessarily, members of the 

 directory in pure physics and pure chemistry, for the purposes of 

 correlation, as above indicated. 



This plan contemplates separate allotments for the geophysical 

 and the geological phases of the work to be administered by the two 

 sections of the directory, respectively, but in the closest co-operation, 

 as implied by the large factor of common membership 



