176 REPOKT OF NATIONAL MUSEUM, 1893. 



From Prof. C S. Craiidall, Fort Collins, Colo., has been reci-ive«l a collection of 

 587 Colorado plants. 



From Mr. G. W. Lctterman, of Alleutowii, Mo., was received a small but interest- 

 in<i and yaliiable collection consisting of 71 grasses of the genus Poa, collected at 

 high altitudes in the Eocky Mountains of Colorado. 



From C. G. I'ringlc, of Charlotte, Vt., was purchased a collection of his plants of 

 18!)2 from southern Mexico. 



From Dr. Franz Buchenau, of l^erlin, Germany, was recei\e(l a collection of Itil 

 specimens of the genus Juncus. 



From Dr. H. H. L'usby, of New York City, a set of Miguel Jiang's ]?f)li\ian plants 

 was received. 



Fascicles 8 and 9 of Mr. W. N. 8uksdorf's collections made in the .State of W ashiiig- 

 ton have been acquired by purchase. 



M. C. Coi)ineau has sent in 260 specimens of French plants as an exchange. 



From Dr. B. L. Robinson was secured a set of 420 siiecimens collected by the late 

 Mr. H. E. Seaton, of Cambridge, Mass., on Mount Orizaba, Mexico. 



In addition the first installments of severiil collections have been received from 

 collectors which are more properly mentioned, together with the remainder of those 

 collections, in the report for the succeeding year. 



Through the Smithsonian Institution has been received fromM. S. E. Lassiuiouue, 

 of France, a collection of 200 specimens of plants from that country. 



From Baron Ferdinand a'ou Mueller, Melbourne, Australia, have been received 

 several packages of Australian plants, in most cases new to the Herbarium. 



From Miss Elizabeth Taylor, of Troy, N. Y., were received a set of 115 specimens 

 collected by herself in a journey down the Mclveuzie River, British America, during 

 the season of 1892. 



From the U. S. Fish Commission was received a package of 650 specimens from 

 the mainland and islands of Alaska, collected by Dr. B. W. Evermann. 



Ill addition to these specimeus many others, small in number but no 

 less valuable in quality, have been received and incoriiorated in the 

 Herbarium. 



DEPARTMENT OF FOSSIE PLANTS. 



The work of the year has been a continuation of that of the two 

 preceding years, that is, the object kept constantly in mind has been 

 "the arrangement of the specimens in such a manner as to facilitate 

 their consultation and study." 



Prof. Lester F.Ward, of the Geological Survey, continues his services 

 as honorary curator, and Prof. F. 11. Knowlton n-as reappointed assistant 

 curator of this department in August. He was, however, only able to 

 devote one-half of the time to this work for several months, but since 

 December his whole time has been given to the ^Museum. Later by an 

 arrangement madebetween the National Museum and the U.S. Geological 

 Survey, Prof. F. H. Knowlton exchanged work with Mr. ]Javid White. 

 The actual period of this exchange extended from November 28 to June 

 27. During this i)erio<l Prof. Knowlton continued the revision of the 

 flora of the Laramie group, mentioned in my last report, and at the 

 end of the year he had settled the status of 241 species and had written 

 about 450 i)ag<'s of the ])r('liminar>' manuscript. He has had prepared 

 a large numlier of drawings to illustrate the new species, or those pos- 

 sessing peculiar or curious features. The work thus far accomplished 



