218 
Marion and Wellington Formations’ and 
on ‘ The Dakota Cretaceous of Kansas and 
Nebraska.’ A. §. Hitchcock gave a list of 
the plants collected in Lee County and other 
localities in Florida, a region of great in- 
terest to the botanist on account of the di- 
versity of the flora. 
Warren Knaus, in reporting on the addi- 
tions to Kansas coleoptera, stated that the 
number of known species is now 2,500. W. 
K. Palmer gave an illustrated paper on 
‘The Value of Geographical Methods in the 
Teaching of Thermodynamics’; also on ‘ The 
use of Ball-bearings for General Machinery 
and on Principles of Chimney Design.’ HE. 
C. Franklin discussed the experiments that 
he has been conducting during the past 
year, upon the use of ‘ Liquid Ammonia as 
a Solvent.’ Many of these experiments, 
which have already been published, throw 
a great deal of light upon the new theories 
of solution. An interesting paper on the 
Americus limestone, was presented by Alva 
J. Smith. The area covered by this excel- 
lent building stone was discussed, and an 
analysis given. L. E. Sayre spoke on the 
‘Medicinal Plants of Kansas.’ He men- 
tioned the medicinally valuable plants of the 
Asclepiadaciae and gave the geographical 
distribution of the medicinal plants of this 
genus and the commercial value of the prod- 
ucts. 
J. R. Mead gave an interesting paper on 
the peculiar formation known as the ‘ Flint | 
Hills’; and also one upon the ‘Archeology of 
Catalina Island,’ illustrating the latter paper 
with fragments of ancient vessels. S. W. 
Williston described a new cretaceous turtle 
which he has recently studied. A paper 
from Edward Bartow gave an account of 
the work being carried on at the Labora- 
tory of the State University on ‘ Sanitary 
Water Analysis of the Kaw River’ and 
other streams and miscellaneous sources 
of supply in the State. Grace B. Meeker 
read a paper that attracted much interest, 
SCIENCE. 
[N.S. Voz XIII. No. 319. 
upon the wild flowers of the locality that 
are adapted to cultivation. This brought 
out a discussion in which much val- 
uable information was elicited. J. W. 
Beede reported on ‘ Some Contributions to- 
ward a Monograph of the Permian of the 
central United States’ and also, in connec- 
tion with C. N. Gould on ‘The Kansas-Ok- 
lahomaTriassic and its Invertebrate Fauna.’ 
The same author discussed the ‘ Atchison 
Shales.’ E. H.S. Bailey gave the analysis 
of a Mangano-ferrous mineral water, that 
contains more manganese than any water 
that has been previously noticed. L. N. 
Morscher read a paper on ‘The Role of 
Isostacy.’ 
H. P. Cady has devised a new method for 
the detection of arsenic, antimony and 
tin. The arsenic is precipitated in a con- 
centrated hydrochloric acid solution by a 
current of hydrogen sulfid gas, and to the 
solution hydrogen sulfid water is carefully 
added, when the antimony will be precipi- 
tated, and upon the further addition of the 
same reagent tin will be precipitated, so that 
at the end of the operation there will appear 
three distinct layers of sulfids of the metals 
in the test tube. Geo. H. Curtis read a 
paper on ‘The Food of Fishes in central 
Kansas.’ J. C. Cooper reported on some in- 
teresting specimens of nodular pyrites. 
Several valuable lists were placed on 
record, as that of ‘ The Spring Flora of Cow- 
ley Co.,’ by Mark White ; a catalogue of the 
‘Goss Ornithological Collection’ by B. B. 
Smyth ; a list of ‘ Birds observed in Dickin- 
son County’ by D. E. Lanz; a catalogue of 
the ‘ Crayfishes of Kansas’ by J. A. Harris. 
The evening of Friday was occupied by 
the address of the retiring president, A. § 
Hitchcock, on ‘Ecology, or the Effect of 
Environment upon Plants,’ an illustrated 
lecture on ‘The Milky Way,’ by E. Miller, 
and another paper, also illustrated, on 
‘Mines and Minerals of Kansas,’ by G. 
P. Grimsley. E. H.S. Barney. 
