Page:Popular Science Monthly Volume 10.djvu/594

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THE POPULAR SCIENCE MONTHLY.

II. Refractors.—(Continued).

OWNER OR DIRECTOR,
AND OBSERVATORY.
Constructed by APERTURE. FOCAL LENGTH. Remarks
English
Inches,
etc.
French
Inches.
Metres English
Feet
etc.
French
Feet
etc.
Metres.
Stoneyhurst College    8            
Wilson, Rugby  A. Clark & Sons.  8.25            
——, Florence  Amiel      8        
Erek, Ireland  A. Clark & Sons.  8        75 in.    
Ashe, Quebec  A. Clark & Sons.  8        9 ft.    
Hartnup, Liverpool  Merz  8      12 ft.      
Lyman, Yale College    8.25            
U.S. Naval Academy  A. Clark & Sons.  7.75            
Esty, Amherst College  A. Clark & Sons.  7.25      101 in.      
Bishop, London  Dollond  7      11 ft.      
Knott, ——  A. Clark & Sons.  7.33      9.4      
Birt, London    7.5            
Leeson-Prince ——  Tulley  7      12 ft.      
Russell, Sydney  Merz  7      9.66      
Main, Oxford  Repsold  7.5      10.5      Heliometer
Williams College, U.S.  A. Clark & Sons.  7⅛            
——, Naples  Fraunhofer    7          
O. Struve, Pulkova  Merz    7          Heliometer
Hansteen, Christiana  Merz    7          
Kaiser, Leiden  Merz    7          
Dembowski, Florence  Merz    7          
Russell, Sydney  Merz    7          
Luther, Königsberg  Fraunhofer and
Merz
   70.24      1,1341    Heliometer
——, Capstadt  Merz  6 5            
Wendell, Bates College
U.S.
 A. Clark & Sons.  6.25            
Moore, Lynn. U.S.  A. Clark & Sons.  6.25            
Burnham, Chicago  A. Clark & Sons.  6            
Lee, Hartwell  Tulley  6            
Lockyer, London    6.25      8.5      
Mouckhoven, Genth  Cooke  6      7.5      
Lord Lindsay, Dun Echt.  Cooke  6      6      
——, Madras  Dollond  6?      5      
Wolf, Zürich  Dollond  6  6?      8    
Schmidt, Athens  Dollond  6  6?          
Schoenfeld, Bonn      6          Heliometer
Moesta, Santiago  Young, Fitz    6.4      103.7    
               
High School, Philadelphia  Merz    6      8 ft.    
Trouvelot, Cambridge  Merz    6      8.5?    
Peek, Columbia College  A. Clark & Sons.  6            
Durham University  Ross  5            
——, Lucknow  Troughton  5.5            
Broun, Trevandrum  Dollond  5      7.5      
U.S. Transit Venus Com.  A. Clark & Sons.  5      5 ft.      8 instruments.
Loomis, Yale College.  Dollond  5      10 "      
Curley, Georgetown  Simms  5      80 in.      
Pickering, Harvard Coll.  Merz    4    5 ft.      
Luther, Bilk      4          
Tebbutt, New S. Wales.    4.5            
Bruhn, Leipsic        0.117      1.96  
Lord Lindsay, Dun Echt.  Repsold    4          Heliometer
Carrington, Red Hill.  Simms  4.5      4.3      
                 


and many others.

 

THE JOURNEYINGS AND DISPERSAL OF ANIMALS.

IN his recent elaborate work on the "Geographical Distribution of Animals," Mr. Alfred Russel Wallace gives much attention to the subject of migrations as among the means of dispersion, and from his copious treatment of the subject, and various other sources, we glean the following brief particulars upon this subject: