127 
equal period, held a similar position in Mauritius. He made ex- 
tensive collections of algae at both of these points and his her- 
barium was particularly rich in Mauritian material. In 1904, the 
algal collections of Dr. C. L. Anderson, of Santa Cruz, California, 
numbering about 4,000 specimens, came to the Garden through 
purchase. r. Anderson has been an enthusiastic collector of 
the marine algae during a long residence in Santa Cruz, and 
exchanged extensively with collectors in the eastern states and 
in Europe, his herbarium brought elements of much value to the 
Garden’s collections. 
But the chief source of the increase in the Garden’s algal her- 
barium in recent years has been from special expeditions sent into 
the field for the purpose of making collections. In 1900, the 
writer was enabled through a grant from the department of botany 
of Columbia University and one from the John Strong Newberry 
Fund to make collections and studies of the marine algae in Ber- 
muda, on Marthas Vineyard, Mass., and on the coast of Maine. On 
behalf of the Garden, in 1901, an expedition was made to Nova 
Scotia and Newfoundland ; in 1902, to Florida; in 1903, to Porto 
and in 1907, to the Bahama and Caicos Islands. These expedi- 
tions have resulted in bringing together about 35,000 dried speci- 
mens of marine algae, as specimens are commonly counted. 
Many of these still await critical study and are yet to be in- 
corporated in the herbarium proper. Probably two thirds of them 
will be used as duplicates for exchange or for distribution to 
other institutions. The dried specimens are supplemented by a 
large amount of material preserved with the aid of formaldehyde, 
etc., such material being, in case of many of the species, very 
desirable or even essential for showing the natural form and finer 
details of structure. These fluid-preserved specimens are also 
freely used in the exhibits in the show-cases of the public museum. 
In addition to the specimens obtained by the Garden expedi- 
