September 13, 1901.] 



SCIENOK 



421 



teriorate in the presence of othei' colors or aflfect 

 these colors, especially those of albumin ; a 

 soluble black for dyeing, which will resist the 

 action of light and soap as much as aniline 

 black ; a light blue cheap enough to be used to 

 dye wools and not affected by boiling or by 

 light ; a blue similar to ultramarine which can 

 be fixed upon cotton by a chemical process ; a 

 pure yellow which behaves like alizarin as re- 

 gards its dyeing properties ; a lake-red ; a pur- 

 ple ; a coloring matter to supersede logwood in 

 its various applications ; an assistant especially 

 applicable to wool, capable of being cleared by 

 simple washing, and composed of substances 

 other than tin salts, hydrosulphites, sulphites, 

 and bisulphites ; new method of fixing aniline 

 colors ; a means of making colors resist the 

 action of soap or of prolonged boiling ; a means 

 of producing the sheen of gold and silver upon 

 materials by metallic powders ; a manual con- 

 taining tables showing the densities of as many 

 inorganic and organic compounds as possible, 

 in the crystallized state and in cold saturated 

 solution ; the synthesis of a substance having 

 the essential properties of Senegal gum ; a sub- 

 stance to supersede egg-white in the dyeing of 

 linen ; a colorless blood albumin which can be 

 used instead of egg-white ; a manual on the 

 analysis of compounds employed in fabric print- 

 ing and in dyeing ; an indelible ink for mark- 

 ing cotton and similar materials ; a practical 

 method of removing grease spots from mate- 

 rials ; a memoir on the use of resins in bleach- 

 ing cotton fiber ; a memoir on the bleaching and 

 dyeing of various kinds of cotton ; also memoirs 

 dealing similarly with wool and silk ; use of 

 hydrogen peroxide for bleaching ; improve- 

 ments in the bleaching of wool and silk ; and 

 manuals on the bleaching of cotton, wool, silk, 

 hemp and other fibers. 



In connection with fabric printing, medals are 

 offered for an alloy or other substance which 

 has both the elasticity and durability of steel 

 and also the property of not causing any 

 chemical action in the presence of acid colors 

 and colors containing certain metallic salts ; 

 a new cylinder machine capable of printing at 

 least eight colors at once ; and an application 

 of electricity to bleaching, dyeing or fabric 

 printing. 



Among the prize subjects in mechanical arts 

 are : A means of recording by a graphical 

 method the work done by steam engines in a 

 given period (ordinary indicator diagrams do 

 not fulfil the conditions); memoir on the spin- 

 ning of combed wool ; on the force required to 

 start spinning machines ; a motor for driving 

 machines used in printing fabrics. 



In electricity medals will be awarded for an 

 electric motor the power and driving rate of 

 which can be easily varied ; a memoir on the 

 comparative cost of electricity and gas for light- 

 ing a town having a population of at least 30,- 

 000 ; and comparative costs of electricity, gas, 

 acetylene and water-gas for lighting an indus- 

 trial establishment. 



Money prizes as well as medals are awarded 

 for some of the subjects, and all the competitions 

 are open to every one, irrespective of nation- 

 ality. The memoirs, designs or models sub- 

 mitted for the awards should be sent to the 

 president of the Society industrielle de Mul- 

 house before February 15, 1902. 



SCIENTIFIC NOTES AND NEWS. 



A ROYAL commission has been appointed in 

 Great Britain to study the relation of bovine 

 and human tuberculosis, consisting of Sir 

 Michael Foster, Dr. Sims Woodhead, Dr. Harris 

 Cox Martin, Professor J. McFadyean and Pro- 

 fessor R. W. Boyce. 



Dr. W J McGee and Dr. W. H. Holmes 

 were at St. Louis recently to advise in regard 

 to the exhibit of anthropology and ethnology 

 at the exposition in 1903. Very comprehensive 

 exhibits were recommended, of which we hope 

 to give later a detailed account. 



Professor Willis L. Moore, chief of the 

 Weather Bureau, visited the Yellowstone Park 

 last week, with a view to studying the desira- 

 bility of establishing there a weather station. 



Mr. H. D. Hubbard, private secretary to 

 President Harper, of the University of Chicago, 

 has been appointed, as the result of a civil 

 service examination, secretary of the National 

 Bureau of Standards, at a salary of $2,000 a 

 year. 



The Dutch Academy of Sciences at Harlem 

 has elected to membership H. Haga, professor 



