2 
of his scientific books, pamphlets, notes and correspondence to the 
Boston Society of Natural History. In 19^-lj the Society donated the 
Bailey Collection to the Farlow Herbarium of Harvard University, where 
it currently resides. 
Since 1976, I have worked at the Farlow Herbarium restoring those 
portions of the Bailey Collection which contained diatoms to a condition 
that would make them useful to contemporary taxonomists and historians 
of science. As the initial step in this restoration, I prepared a 
bibliography of Bailey’s scientific contributions (Edgar, 1977)* 
In promoting further this restoration this present work defines the 
present extent of the collection and indexes the taxa, geographical 
locations and persons associated with the diatom portions of it. 
.The Bailey Collection: 1857-19^-1 
The general contents of the Bailey bequest to the Boston Society 
of Natural History are clear, but an itemized account of most parts 
of the collection has not been found and doubtfully was one made. 
Consequently, the extent of the diatom"contents of the original 
collection can be approximated only. 
The bequest circumscribes initially the collection (Proc. Boston 
Soc. nat. Hist. 6:179-l8l. 1857 •)*• 
Bequest of Prof. J.W. Bailey. 
First o A microscopic collection, contained 
in cases resembling books, together with said 
cases, and the index volumes thereunto belonging; 
the whole bearing for titles, ff Microscopic 
Collections." 
Second . The whole of my collection of Algae, 
or Seaweeds, as contained in a set of portfolios, 
together with said portfolios. 
