Apkil 8, 1898.] 



SCIENCE. 



503 



cussed the plans for the formation of a catalogue 

 of the local flora. He made numerous sugges- 

 tions as to methods for collecting the lower 

 plants, illustrating his remarks with specimens. 

 Three new members were elected. 



The Club met again on March 24th, thirteen 

 members present. Dr. N. M. Glatfelter ex- 

 hibited specimens of Salix cordata and discussed 

 the adnacy of their filaments as well as re- 

 duplication in some cases. He showed that 

 adnate filaments, partial or more or less com- 

 plete, are quite common, a circumstance never 

 mentioned before by authors. Two free stamens 

 in this species have always been recognized here- 

 tofore, and only that acute observer, W. Barratt 

 (in Monograph of North American Willows), ad- 

 mitted two or three free stamens. Dr. Glat- 

 felter exhibited specimens having three to five 

 filaments with as many anthers. The filaments 

 were united in various ways, sometimes in sets 

 of two each, sometimes four all joined half way, 

 in several cases even five, more or less grown 

 together. One or two anthers were usually im- 

 perfect. The specimens were taken from a tree 

 of Salix cordata var. vestita. 



Another series of specimens of Salix cordata 

 X var. vestita X S. sericea were exhibited, show- 

 ing matured catkins which had not been pol- 

 linated, as the staminate flowers had all disap- 

 peared much earlier, thus limiting the further 

 propagation of this particular form. Three new 

 members were elected. 



Hermann yon Schrenk, 



Secretary. 



in granite areas, where it is supposed that the 

 feldspar has been changed to kaolin through 

 the influence of fluoric fumes rising from below. 

 These products are very pure, containing 

 ninety-seven and one-half per cent, of clay sub- 

 stance. He also spoke of the ball plastic clays 

 found in southwestern England, which occur in 

 lenses in large beds of sand and are used to mix 

 with non-plastic kaolins. Eefractory clays are 

 found in England and Scotland in the Car- 

 boniferous rocks and are worked by under- 

 ground mining. Impure clays, used for bricks, 

 are particularly found in the vicinity of Lon- 

 don. The Staffordshire blue brick. Fuller's 

 Earth and Bath brick deposits were sketched 

 briefly, and the technological treatment in Great 

 Britain, Germany and the United States was 

 compared. The latter part of the paper was 

 devoted to a rapid summary of the position, 

 quality, uses and manner of mining of the 

 famous clays of Bornholm, Denmark ; of the 

 Glasspot clays of southeastern Belgium ; of 

 the kaolin deposits of Limoges, France, and 

 the deposits of Prvissia. 



Professor Henry F. Osborn described the 

 progress made this year, through international 

 effort, in correlating the larger divisions of the 

 fresh-water Tertiary deposits of Europe by a 

 study of the vertebrate remains. 



Professor James F. Kemp was elected chair- 

 man of the Section and Dr. Heinrich Ries secre- 

 tary for the ensuing year. 



EiCHARD E. Dodge, 



Secretary. 



NEW YORK ACADEMY OF SCIENCES — SECTION 



OF GEOLOGY AND MINERALOGY, 



MARCH 21, 1898. 



The paper of the evening, illustrated by 

 lantern, was by Dr. Heinrich Ries, entitled 

 'The Clay and Kaolin Deposits of Europe.' 

 Dr. Ries sketched briefly the geographical dis- 

 tribution of the kaolin deposits and their rela- 

 tion and comparison to similar deposits of 

 America. He then gave special attention to 

 the deposits of Great Britain, Belgium, Den- 

 mark, Germany and Austria, and mentioned 

 1 briefly those found in other regions. He de- 

 scribed particularly the deposits of Cornwall, 

 which are found in association with veins of tin 



new YORK SECTION OP THE AMERICAN CHEM- 

 ICAL SOCIETY. 



The regular monthly meeting of the Society 

 was held on March 11th at the College of the 

 City of New York, Dr. "Wm. McMurtrie in the 

 chair. On recommendation of the chairman, 

 speaking in behalf of the Executive Committee, 

 the time for the election of officers was changed 

 from the October to the June meeting, to al- 

 low the newly elected officers an opportunity 

 to prepare the work for the ensuing year during 

 the summer months. Dr. Bogert called the at- 

 tention of the members to the fact that anyone 

 interested in zoo-chemistry and wishing to do 

 research work in that direction might avail him- 



