235

UNIVERSITY OF NEBRASKA.

LINCOLN Dec.11, 1890. 189

Dr.N.L.Britton,
Columbia College, New York City;
My Dear Doctor:-
I send yo today an express package containing
a few specimens of Psoralea, Potalostemon, and Lupinus, Of the first
there are seven species, and in this letter I enclose Mr.Rydberg's
critical notes upon them. You must make some allowance for Mr.
Rydberg's English, as he has been in this courty but a short time,
and has not yet sompetely mastered the English language, I told
you of Mr. Rydberg- that he has been studying with me, and is, I think,
doing very good work.

Of the second genus there are five species included in the pack-
age, and I aslo enclose Mr. Rydberg's notes on these. On opening the
package be kind enough to nore that in one part of it I have inclided
Mr. Rydberg's specimens, and some selected from the University herba-
ruim, which you are to keep for the College herbarium, if you chose,
while in the other part of the package I have enclosed specimens taken
from the herbarium for your study, butthese are to be returned when
you have completed your work. Be kind enough to see that the speci-
mens are not lost or mixed up with others.