New YorK AGRICULTURAL EXPERIMEN’ STATION. 51 
WasHInetTon, D. C., March 29, 1905. 
Pror. H. A. HARDING, : 
Bacteriologist, N. Y. Agricultural Experiment Station, 
Geneva, N. Y.: 
Dear Sir :—In reply to your letter of March 25, I would say 
that upon investigation I find we do not have on hand at the 
present time any pure cultures of the organism for alfalfa. We 
do not attempt at this time of the year to keep cultures in stock, 
as we depend upon getting fresh ones from the roots of alfalfa 
plants, and we have enough cotton prepared to supply the demand 
for cultures to be sent out before the first of July. However, I 
am sure you will have no difficulty in getting pure cultures for 
yourself if you follow the directions given in the specifications to 
letters patent No. 755,519 issued March 22,°1904. A copy of the 
’ patent can be obtained by writing to the Commissioner of Patents, 
Washington, D. C., and enclosing five cents in currency. In 
case there is any further information I can give you after the 
‘receipt of the formulas contained in the patent specifications, 
do not hesitate to call upon me. 
Yours very truly, 
A. F. WOODS, 
Chief Pathologist and Physiologist. 
A copy of letters patent No. 755,519 was received April 8, 1905. 
UNITED STATES PATENT OFFICE. 
GEORGE T. MOORE, OF WASHINGTON, DISTRICT OF 
COLUMBIA. 
PROcESS OF PREPARING FOR DISTRIBUTION ORGANISMS WHICH 
Fix ATMOSPHERIC NITROGEN. 
Specification forming part of Letters Patent No. 755,519, dated 
March 22, 1904. 
Application filed May 4, 1903. Serial No. 155,695. 
(No specimens.) 
To all whom it may concern: 
Be it known that I, Grorcr T. Moore, a citizen of the United 
States, residing at Washington, in the District of Columbia, have 
invented new and useful improvements in the process of prepar- 
