160 Miscellaneous Intelligence. 



perturbations of Uranus, Prof. Newconab used yg^j^^j. The distaii 

 of the satellite from Neptune is 16 275, its daily motion 61°-2507 

 ''' ' ■■■ '- ' -' '■ '■ ; 145°12; and the orbit so far as obse 



Ratio of Ahsorptk 



Q. A. GiLLMORK. 38 pp. 8vo, with two plai 

 port to the Chief of Engineers, 11. S. Army. (D. Van Nostrand.)— 

 This report contains the results of a very careful series of experi- 

 ments on various building stones of the country. I'he method of 

 experimenting in the crushing is particularly described, and the 

 results as to crushing-strength with the (mbes of stone in ditfereut 

 positions, and between wood, lead and leather cushions, etc., are 

 given in detail. The tables contain entries of 99 experiments on 

 granites, 43 on limestones, 12 on marbles, and 62 on sandstones. 



2. Science and Art Department of the Committee of Council 

 on Education., South JTen sin ff ton.— The Loan Exhibition of Scien- 

 tific Apparatus will open on the 1st of April, 1876, and remain 

 open until the end of September. It will consist of instruments 

 and apparatus employed for research and other scientific purposes 

 for teaching, and for illustration of the progress of science and its 

 applications to the aits. Models, drawings, and photographs will 

 be admissible where originals cannot be sent. Forms on which to 

 enter descriptions of objects ofiered for exhibition may be obtained 

 on application to the Director of the South Kensington Museum, 

 London, S.W., and these forms should be tilled up and returned as 



to the adinissil)ility of the objects they propose to send. The 

 Science and An Departnjent defrays the cost of carriage, but, 

 while using all possible care, is not responsible for loss or damage. 

 The circular issued expresses the hope that institutions or individ- 

 uals having instruments of historic interest will be good enough 

 to lend them. Tlie instruments and apparatus desired are of all 

 important kinds connected with the subjects of arithmetic, geome- 

 try, measurement, kinematics, statics, dynamics, molecular phys- 

 ics, sound, light, heat, magnetism, electricity, astronomy, applied 

 mechanics, chemistry, meteorology, geography, geology and min- 

 ing, mineralogy, crystallography, biology, (microscopes, ifec.) 



3. Works on the Paleontology of the Rocky Mountain Surveys 

 Progress. — The first four months of this year will witness the 



ition of an unusually large number of works on the inverte- 



paleontology of the great Rocky Mountain and adjacent 



'■ which have been delayed several years. The 



brate pa! 



publishei 



