160 THE CORRESPONDENCE OF SCHWEINITZ AND TORREY 
shall certainly avail myself of your kind offer of assistance—In 
the cryptogamia I shall trouble you much. I am very fortunate 
in having Mr. Nuttall to stay with me, probably for two months. 
He is to give a course of lectures here on Botany. We are both 
bachelors & he is to stay altogether at my office, so that I promise 
myself a great treat from the company of this celebrated natura- 
list. He is much devoted to mineralogy which is a favorite pursuit 
of mine also. So that we shall have our hands full while he remains. 
As you are now settled not a great distance from the place 
where Muhlenberg resided, you will probably find some of the 
plants enumerated in his Catalogue [52], which are not to be found 
here. There are many of his species which are not described under 
his names in any work that I have seen. Probably some of these 
are new, but the greater part must now be anticipated by Pursh, 
Nuttall, &c., but it would be desirable to know all his species with 
certainty. Have you any specimens from him? Is there any 
probability that the long-promised Flora Lancastrensis will ever 
be published ? 
May 4th— I perceive, that owing to my.Herbarium being 
in considerable confusion from removing, & the variety of business 
I have on hand, that it will be out of my power for a week or 
two to compare your last list with the specimens to which it 
refers. This however shall be done as soon as possible. 
If I do not hear from you in the course of a week I shall en- 
deavour to have your package forwarded by the stage as you once 
directed. There will be about 100 more species of cryptogamia. 
Do let me hear from you as often as possible. 
On looking over the collection of Musci you sent me some 
time since, I perceive that the moss you named Leucodon sciu- 
roides is altogether different from my European specimens as 
well as from the species you once named as sciuroides for me! It 
is probably a Leucodon for the teeth, if I am not much mistaken are 
cleft as in Dicranum, but it is nevertheless what I long ago de- 
termined to be Pterogonium intricatum, & has been so named by 
Sprengel. Will you look at this again— 
With respect, 
THE Revp. L. D. SCHWEINITZ Dear Sir Yours &c 
JOHN TORREY 
Pe en 
