26 MISSOURI BOTANICAL GARDEN. 
enable a person interested to obtain further information by 
reference to easily accessible books, or to order a desirable 
species from dealers in case he wishes to procure it for 
cultivation. 
THE HERBARIUM. 
Though the maintenance force in the herbarium has 
been kept always at the minimum consistent with the pre- 
servation of the collections in a reasonably usable condi- 
tion, uninterrupted if fluctuating growth has been noted 
each year. In 1903, 37,408 specimens were incorporated. 
Of these, 3,964, valued (unmounted) at $198.20, were 
presented or received by way of exchange; 9,020, valued 
at $451.00, were collected by employees of the Garden; 701 
were cryptogams belonging to the Bernhardi herbarium, 
bought many years before his death by Mr. Shaw;* and 
24,424 were purchased. The expenditure for the year on 
herbarium specimens and supplies was $2,596.98. Among 
the collections incorporated this year were 3,014 sheets col- 
lected by the Director in Madeira, Alaska, etc., 8,098 from 
the Chapman collection, 1,261 from the Broadhead her- 
barium, 1,750 of Krieger’s Saxon fungi, 1,350 of Raben- 
horst’s European mosses and 59 Engelmann sheets. 
Duplicate material to the extent of 1,074 specimens, valued 
at $53.70, was distributed to correspondents in 1903. 
The total number of specimens in the herbarium is now 
465,205, an increase of 157,745, or 51.3 per cent, over the 
number reported at the end of 1898.¢ Asis shown by the ac- 
companying diagram, this increase in incorporated material, 
which averages about 10 per cent for each of the last five 
years, was chiefly effected in 1899, 1902 and 1903, in 
which years large accumulations of unmounted, and there- 
fore unrecorded, material were mounted and inserted. This 
* Rept. Mo. Bot. Gard. 8:19. 
t Rept. Mo. Bot. Gard. 10: 18. 
