June 21, 1895.] 



SCIENCE. 



(;<»:5. 



between a prism and a grating with 14,0(iO 

 lines to the inch. 



The Friday evening discourse at the 

 Eoyal Institution on May 31st was given 

 by the Earl of Kosse, who took as his sub- 

 ject the 'Kadiant Heat from the Moon dur- 

 ing the progress of an Eclipse.' Sir Fred- 

 erick Abel was in the chair, and among 

 those present were Lord Kelvin, Sir James 

 Crichton-Browne, Sir Frederick Bramwell, 

 Pi'ofessor Dewar, Mr. C. Y. Boys, Dr. Frank- 

 land. Mr. Ludwig Mond and Mr. Crookcs. 

 Lord Rosse began by showing the results of 

 his observations on the variations in the 

 amount of heat radiation from the moon 

 during the lunar month. Speaking of the 

 heat given off during an eclipse, he said 

 that in the total eclipse of JanuarJ^ 1888, 

 he had found there was a great decrease in 

 its amount some time before the first con- 

 tact. During the total phase the heat ra- 

 diated was a mere trifle, and it had not re- 

 gained more than 80 per cent, at full moon 

 — an hour and a half after the last contact. 

 Lord Rosse then described the apparatus 

 he had used, and also the apparatus and 

 some of the results of other investigators. 



The usual monthly meeting of the British 

 Astronomical Association was held at Uni- 

 vei-sity College on May 28th, Mr. E. "\V. 

 Maunder, the president, being in the cliair. 

 A paper was read from Professor H. II. 

 Turner, Savilian Professor oi' Astronomy at 

 O.xford, on ' Simple Apparatus for Measur- 

 ing Stellar Photographs.' Mr. Holmes 

 read a paper on on • The Reproductions of 

 Astronomical Drawings,' etc., in which the 

 value of photographic processes was com- 

 mented on as being more accurate. He 

 also read a paper on the apparent roundness 

 of small spot markings on planets. A paper 

 from Mr. Monck on the ' Spectra and Colours 

 of Stars ' was read. The report of the 

 Lunar Section, by Mr. T. Gwyn Elger, F. 

 R. A. S., the director, was read, and at- 



tention was I'alled to the progress matle 

 recently in hiiiar piiotograjiliy. 



<iEXEK.\L. 



Professor C. Lloyd Morgan, author of 

 Animal Life and Intelllfjence and other works 

 u{)on comparative psychology, is coming to 

 this country next winter to deliver one of 

 tiie Lowell Institute courses in Boston. 

 He will also deliver four lectures upon In- 

 stinct in the Columbia Biological Course. 



Field exploration in vertebrate paheon- 

 tology is increasing very rapidly, and tliis 

 summer a large number of parties will be 

 in the field. The American Museum ex- 

 l^edition to the Uinta Basin entered the 

 field in March, accompanied by Mr. J. B. 

 Hatcher, representing the Princeton Mus- 

 eum. On June 1st Dr. J. L. "Wortman takes 

 charge of the American Museum party, 

 which will include four collectors. The Uni- 

 versity of Kansas will send three parties 

 into the fossil beds of Kansas, Dakota and 

 Wyoming. The University of Xebraska 

 will also send a party under the direction of 

 Prof. Barbour. Prof Baur, of the Univer- 

 sity of Chicago, announces a field expedition 

 as a regular part of the Univer.sity curric- 

 ulum. 



The Royal Academy of Sciences of the 

 Institute of Bologna offers a gold medal of 

 the value of 1 ,000 francs for a memoir which 

 either from tlie chemical, physic<al or me- 

 chanical point of view will indicate a prac- 

 tical system or new apparatus for the pre- 

 vention or extinction of fire. The essays 

 may be written in Italian, French or Latin. 

 Those in other languages must be accom- 

 panied bj' an Italian translation. The 

 essays are to be signed with a nom de plume 

 and to be accompanied by an envelope con- 

 taining the author's real name. All essays 

 must be in l>efore May 129. l.*<9G,and should 

 be addressed : " Al Segretario delta R. 

 Academia delle Scieme delV InMituto di 

 Bologna." 



