374 



SCIENCE 



[NT. S. Vol. XXXII. No. 820' 



matics, died on August 19, at the age of 

 seventy years. 



M. WiLM, honorary professor of chemistry 

 at Lille, has died at the age of seventy-seven 

 years. 



The death has occurred at Helsingfors, at 

 the age of seventy-six years, of Karl Gustav 

 Estlander, professor of esthetics in the univer- 

 sity of that city. 



It is announced from Paris that Madame 

 Curie has isolated pure radium. IJp to this 

 time radium has been known only in the form 

 of salts. 



The copyright of the Encyclopedia Britan- 

 nica has been acquired by the University of 

 Cambridge Press from the London Times, 

 which began the preparation of the eleventh 

 edition some seven years ago. It is ex- 

 pected that the complete work in twenty-eight 

 volumes will be issued simultaneously within 

 sis months. 



The next meeting of the International 

 Commission for Scientific Aeronautics will 

 be held in 1912 in Vienna. 



An International Conference on Town 

 Planning will be held in London from October 

 10 to 16, under the patronage of the king, and 

 under the auspices of the Eoyal Institute of 

 British Architects. The council of the Eoyal 

 Academy of Arts has promised to lend its gal- 

 leries "for the display of the notable designs 

 and illustrations of town planning and re- 

 modelling which have been collected from all 

 parts of the world." 



At the meeting of the British Iron and 

 Steel Institute, to be held at Buxton, from 

 September 26 to 30, the following papers wiU 

 be read : " On Electric Steel Eefining," by 

 D. P. Campbell (London) ; " On the Hanyang 

 Iron and Steel Works," by G. Chamier (Han- 

 kow, China) ; " On Manganese in Cast Iron 

 and the Volume Changes during Cooling," by 

 H. I. Coe, B.Sc. (Birmingham); "On Sul- 

 phurous Acid as a Metallographic Etching 

 Medium," by E. Colver-Glauert (Berlin) and 

 S. Hilpert (Charlottenburg) ; " On the Theory 

 of Hardening Carbon Steels," by 0. A. Ed- 



wards (Manchester) ; " On the Influence of 

 Silicon on Pure Cast Iron," by A. Hague, 

 B.Sc. (Birmingham) and T. Turner, M.Sc. 

 (Birmingham) ; " On the Preparation of Mag- 

 netic Oxides of Iron from Aqueous Solu- 

 tions," by S. Hilpert (Charlottenburg) ; " On 

 the Manufacture of EoUed ' H ' Beams," by 

 G. E. Moore (Loughborough) ; " On the Util- 

 ization of Electric Power in the Iron and 

 Steel Industry," by J. Elink Schuurman 

 (Baden, Switzerland) ; " On the Briquetting 

 of Iron Ores," by C. de Schwarz (Liege) ; 

 " On some Experiments on Fatigue of Met- 

 als," by J. H. Smith (BeHast). 



Lectures will be delivered in the lecture 

 hall of the Museum Building of the New 

 York Botanical Garden, Bronx Park, on Sat- 

 urday afternoons, at four o'clock, as follows : 



September 17 — " Orchids, Wild and Cultivated," 

 by Mr. G. V. Nash. 



September 24 — " The Botanical Gardens of Eu- 

 rope," by Dr. W. A. Murrill. 



October 1 — " Some Floral and Scenic Features 

 of Jamaica," by Dr. M. A. Howe. 



October S — " Carnivorous Plants," by Dr. H. 'M. 

 Richards. 



October 15 — "Autumn Flowers," by Dr. N. L. 

 Britten. 



October 22 — " Plant Diseases and their Con- 

 trol," by Mr. F. J. Seaver. 



October 29 — " Explorations in Santo Domingo," 

 by Mr. Norman Taylor. 



November 5 — " The Flora of Switzerland," by 

 Professor E. S. Burgess. 



November 12 — " Some Economic Plants of Mex- 

 ico," by Dr. H. H. Pusby. 



November 19 — " Cuba : Its Flora and Plant 

 Products," by Dr. N. L. Britton. 



The last issue of the University of Colorado 

 Studies, now in its seventh vokime, contains 

 the following articles : " Pre-Thalesian Phi- 

 losophy," by Professor Melanchthon F. Libby; 

 " Sex Differences and Variability in Color 

 Perception," by Professor Vivian A. C. Hen- 

 mon ; " Ants of Northern Colorado," by In- 

 structor Wilfred W. Bobbins ; " Northern 

 Colorado Plant Communities," by Professor 

 Francis Eamaley; "Flow of Water in Irriga- 

 tion Ditches," by Professor Clement C. Wil- 

 liams. 



