898 



SCIENCE. 



[N. S. Vol. III. No. 77. 



showed defective color sense. Dr. Fielde, of 

 Swatow, China, examined 1200 Chinese of both 

 sexes, using Thompson's wool tests. Among 

 the 600 men were 19 who were color-blind, and 

 among 600 women only 1. The percentage of 

 color-blindness among Chinamen is then about 

 8 per cent., and does not vary greatly from that 

 in Euroiseans. Dr. Fielde, however, found that 

 fully half of those tested mixed up blue and 

 green, and this investigator thinks that many 

 of the race are quite blind to the violet colors. 



The thirty-first field meeting of the Appa- 

 lachian Mountain Club will be held from July 

 3 to July 11, 1896, in the Crawford House, N. 

 H. Sessions for the reading of papers and 

 discussions will be arranged for evenings and 

 for stormy daj's. Excursions will be made 

 to the summit of Mount Washington and to 

 Carrigain, Webster, Willard, Willey, Avalon, 

 and other mountains, and possibly up the Mt. 

 Washington river valley. 



Me. E. Walter Maunder, the astronomical 

 editor of Knoiuledge, has arranged to visit Nor- 

 way on board the steamship 'Norse King,' to 

 observe the total eclipse of the sun on the 9th 

 of August next. 



The recent tornado in St. Louis destroyed 

 or seriously injured over 400 trees in the Mis- 

 souri Botanical Garden, and several of the build- 

 ings were damaged; fortunately no harm was 

 done to the herbarium and library. Shortly 

 before the tornado 6,000 panes of glass were 

 broken by a hail storm. 



A PEizE of i^oO is offered by the editor of 

 the Bulletins of American Paleontology, Prof. 

 G. D. Harris, of Cornell University, for a mono- 

 graph suitable for publication in the bulletins; 

 it must be presented before May 1, 1897. 



The Societe helvetique des sciences naturelle 

 and the afiiliated societies will meet at Zurich, 

 from August 2d to oth. 



A BI-MONTHLY mathematical jounal to be 

 edited by Prof. W. E. Storey, Clark University, 

 is announced. The first number is now in the 

 press and is expected to appear at once. 



The collection of American historical docu- 

 ments and other Americana made by Mr. T. A. 

 Emmet has been presented to the New York 

 Public Ijibrary; it is stated that the collection 



cost Mr. Emmet S300,000 and that Mr. J. S. Ken- 

 nedy paid the collector S150,000. A friend of 

 Yale University has purchased for the library a 

 collection of 6,000 volumes and 19,000 pam- 

 phlets relating to Scandinavia. 



A sixteenth section, treating alcoholism, has 

 been added to the Moscow International Medi- 

 cal Congress. 



According to The British Medical Jottmal the 

 new physiological and pathological laboratories 

 just opened at Queen's College, Belfast, are in 

 every way excellent, and form a valuable ad- 

 dition to the resources of the Belfast Medical 

 School. Dr. Lorrain Smith, lecturer on path- 

 ology, is conducting a post-graduate course on 

 bacteriology, which is being largely attended 

 and highly appreciated. The Council of the 

 College, in accordance with the new regulations 

 of the Royal University, have founded a new 

 lectureship in public health. Dr. Whitaker, 

 the General Superintendent Officer of Health 

 for Belfast, has been appointed to the post. 

 The lectures will be extended over three months. 



During the spring term the class in field 

 geology in Uuion College, accompanied by Prof. 

 Prosser, has spent every Saturday in studying 

 the different formations and interesting geolo- 

 gical structure found within a radius of fifty 

 miles from Schenectady. The formations 

 studied range from the Laurentian up to the 

 Hamilton of the Devonian. Some of the locali- 

 ties examined are the region of Saratoga 

 Springs, and iu the Mohawk Valley, HoflTman's, 

 Amsterdam, Tribes Hill and ' the Noses ' near 

 Spraker's. At Saratoga, Hoffman's and 'the 

 Noses ' are excellent examples of fault struc- 

 ture, the latter place showing the Laurentian, 

 Calciferous, Ti-euton and LTtica formations. To 

 the south of the Mohawk Valley, tlie eastern 

 and northern flanks of the Helderberg Moun- 

 tains and Howe's Cave were visited. This re- 

 gion gives an admirable section of the forma- 

 tions represented in eastern New York from the 

 Hudson to near the summit of the Hamilton, 

 and is also the typical locality for a number of 

 them. As a result of this and earlier work of 

 the department, valuable material and data 

 have been obtained that will be used in prepar- 

 ing a report, revising the geology of this region. 



