The evening times., 1898-11-11
CHEMISTS IN session
Opening of the Fifteenth An
nual Convention.
THE ASSOCIATIONS OBJECTS
Results of Experiments with Xari-
ous Fertilizers Discusseti-W. III.
Wiley Makes an Exhaustive Re-
port on Organic Nitrogen Work.
Members Present This Morning.

Tho fifteenth annual convention of the
Association of Official Agricultural Chem
lists held its first session this morning in
A L. Winton, of New Haven, Conn,
president of the association, called the
meeting To order
The object of this association is to Sc
cure uniformity and accuracy in the
methods. results and modes of state
ments of analyses of fertilizers. soils. cat
tie foods, dairy products and other ma
terals connected with agricultural indus
try, and To afford an opportunity for
the discussion OF matters of interest 20
| agricultural chemists
| The association is composed of analytl-
| cal chemists connected with the United
States Department of Agriculture and
with the various state and national agri-
| cultural experiment stations or aGricul-
| tural colleges throughout the country.
The different subjects for consideration
| are placed under a referee and associate
referee appointed by the president of the
association whose duty is to take gem
eraI supervision of the experiments on
| lHelF particular SUBJECT uuIllS the year
| and report the results at the annual
| meeting.
| The morning session was devoted to n
consideration of various fertilizers, and
| the results of the experiments of the
| past year were set forth In lengthy pa
! pers by the referees appointed to prose-
cute experiments in the manufacture OF
| fertilizers
w. II. Wiley. referee in organic nitro
| 40 of
his experiments both by the Kjeldahl
and Cunning methods.
| The material used for making fertilz-
| ers under these experiments was dried
| blood, cotton seed meal tankage, dried
fish, meat scraps, castor pomace, steam
| ed leather bone meal and hOOf meal.
The result of the experiments proved
that the dried blood contained by far the
| largest percentage of fertiizing matter.
Mr.. Wiley explained that the great point
| in the study of nitrogen was TO determine
| it's availability for growing crops. In or
| der to determine this, experiments have
| been made by planting seeds in pots and
| the plants grown under controlled condi-
| tions. Nitrogen in various forms is fed
| to these plants, and the percentage they
| consume is determined by chemical analy
| sis.
| Based or this data, experiments are
| then continued in the laboratory to deter
| mine the exact amount of nitrogen the
| plants take up by the digestion method.
| using pepsin and pancreatine, the natural
digestive ferments Of the animal
| The recommendations of this paper were
that the experiments be continued for
| another year in order to obtain more
| definite results.
After Mr. Wiley's paper a brief discus
sion took place on certain points in :he
| experiments as to the pulTerizatiOn of
| leather. etc.
c. II. Jones, referee on potash expert
| ments, then made his annual report He
said that both cotton hull ashes and
wood ashes had been used. The methods
were the Lindo-Gladding and variations
| of that method at the option OF the ex-
| perimenter. The former method, howev-
| er, was recommended as obtaining The
| best results The best results were OBJ
| tanned with cotton hull ashes,
| A recess for lunch was taken at Il
| O'Clock The sessions of the association
were resumed this afternoon and two
meetings will be held on Saturday and
Monday.
| The members were invited to make use
| of the Cosmos Club rooms while here,
| and theater party was arranged for to-
| morrow evening.
Reports are yet to be read on the fol-
| lowing subjects: Nitrogen, potash, phos-
phoric acid, SOILS, 1oodS ana Ieeu SluIlS,
| food adulterations dairy products. su-
gars, and tannin. The election of Off
GERS will be held at 2 O'Clock tomorrow
afternoon.
The members present were: r. C. Ked-
zie secretary of the association; H. w.
Wiley. L. A. Scovall, ]. L. Hills. c. D.
| Woods r. III. Gaines. B. w. Kilgore,
| F. W. Morris, HI. J. Patterson, c. A.
Goessman, H. B. Mcdonnell, ]. NJ. Bart
| lett c. B. Williams, l.. L. Van Slyke, H.
A Huston. w. W. Skinner. w. D. Bige-
| low W. II. Beal, NJ. E. Jaffa E w. AL
| len, A. w. Blair, ]. A Myers. F. B. Car
| penter, B. L. Hartwell c. ]. Goessman,
| Fl. ]. Wheeler, E. B. Holland, L. A.
Voorhees,, w. A. Withers. B. B. Ross.
| C. II. Jones. F. P. Witch, E. G. Runyan,
| C. c. Moore, O. Carr, W. L. Mitchell,
| ]. P. Street. ]. S. Meng. J. r. Laughlin
| and William Frear.