ttEtOiit OF ASSISTANT DmECTOR. 9 



l)epart7uent XII {A). — Invertebrate Fossils, Paleozoic. C. D. Wal- 

 cott, U. S. Geological Survey, bouorary curator. 



Department XII {B). — Invertebrate Fossils, Meso-Cenozoic. C. A. 

 White, U. S. Geological Survey, honorary curator, J. B. Marcou, U. S. 

 Geological Survey, honorary assistant j one clerk. 



DIVISION OP BOTANY. 



Department XIII. — Fossil and Eecent Plants. Lester F. Ward, TJ, S. 

 Geological Survey, honorary curator; one clerk, one preparator. 



DIVISION OF GEOLOGY. 



Department XIV. — Mineralogy. F. W. Clarke, U. S. Geological Sur- 

 vey, honorary curator, W. S. Yeates, assistant. 



Department XV. — Lithology and Physical Geology. George P. Mer- 

 rill, actiag curator; oue preparator. 



Department XVI. — Metallurgy and Economic Geology. Fred. P. 

 Dewey, curator. 



Some additions aud changes in this classification are contemjjlated. * 



These twenty-seven depaitments and sections are administered by 

 twenty-four curators and acting curators, of which number at jiresent 

 only nine receive salaries from the Museum appropriation. Of the re- 

 maining fifteen, five are connected with the Geological Survey; one the 

 Bureau of Ethnology ; two with the Fish Commission ; two with the 

 Army ; one with the Navy, and one with the Agricultural Department. 



6. THE ADMINISTRATIVE STAFF. 



The only change made iu the classification of this branch of the 

 Museum work is the addition of a department of labels under the 

 charge of Mr. A. Howard Clark. 



The administrative departments are at present organized as fol- 

 lows : 



Department A {Direction). — ^This department is under the immediate 

 charge of the Assistant Director, and embraces the general supervision 

 of the routine work of the other departments, in addition to the per- 

 formance of his special duties as the executive officer of the Museum, 

 such as the care of the installation of specimens, the construction of 

 cases, the purchase of supplies, the assignment of work and apartments, 

 leaves of absence, correspondence, &c. 



Mr. E. I. Geare, executive clerk, has rendered most efficient service 

 in this department, both in the management of the correspondence of 

 the Museum and in the work of preparing the Museum report. 



* The departments of Exploration and Field Work, Chemistry, Experimental Physi- 

 ology, and Vivaria are still unorganized, although Mr. John A. Eyder, embryologist 

 of the U. S. Fish Commission, is frequently referred to in the case of accessions 

 whose special features are related to embryology aud physiology. These accessions 

 are alluded to in index B to Part IV, under Department XVII. 



