586 PROCEEDINGS OF THE ACADEMY OF [DeC, 



Work has necessarily been mainly confined to caring for the 

 accessions. Miss Ada Allen has continued Avith the mounting of 

 the specimens and has prepared for cataloguing and distribution 

 3,150 sheets. Mr. Van Pelt has mounted all accessions to the local 

 collection, amounting to 3,114 sheets and including 664 from the 

 Porter herbarium, which have been distinctively labelled in accordance 

 with the agreement with Lafayette College, by which institution 

 they were deposited. 



Mr. Long has distributed and identified material added to the 

 local herbarium and made critical studies of various groups. He 

 has also attended to much correspondence in connection with the 

 general collection. 



The herbarium has been consulted during the year by Dr. C. S. 

 Sargent, W. W. Eggieston, Harold St. John, Francis Pennell and 

 many others, and specimens have been loaned to W. W. Eggieston, 

 P. C. Standley, Dr. R. H. Howe, Dr. J. C. Arthur, K. K. McKenzie, 

 B. H. Smith, Dr. C. S. Sargent, Dr. F. Pennell, Harold St. John, 

 Dr. J. M. Greenman, Prof. M. L. Fernald. 



The collection of trunk sections of native trees of the Alleghanies 

 presented by Mr. C. H. Jennings has been prepared for exhibition 

 and placed in two mahogany and plate-glass cases in the mineralogical 

 hall just outside the entrance to the herbarium, where it attracts 

 much attention. 



Minerals and Rocks. 



Mr. S. G. Gordon, under the direction of Mr. Frank J. Keeley, 

 Curator of the William S. Vaux Collections, has completed a check 

 list of minerals according to the sixth edition of Dana's Manual 

 as an aid in the rearrangement of the collection which will be under- 

 taken during the coming year. 



Several of the cases in the hall were rearranged and part of the 

 specimens transferred to cases presented by the Curwin Stoddart 

 Estate. 



Mr. Gordon has also redetermined most of the rock specimens 

 and in part relabelled them, while many minerals in the general 

 collection have also been redetermined. Many members of the 

 Oeological Society of America took occasion to examine the collec- 

 tions during the annual meeting of the Society at the Academy, in 

 December, 1914. 



