ILLUSTRATIONS 



r LATE S. 



Chart showing the tracks of the yacht "Fox" in the Arctic regions under command of Cap- 

 tain (now Sir) Francis L. M'Clintock, R. N., 1857 — 1859. Newly projected for the 

 Smithsonian Institution, by Charles A. Scliott, Assistant U. S. Coast Survey, 18€1, 

 Scale 1 : 15,000,000. (Frontispiece.) 



WOODCUTS. 



Figure A. Diagram showing the annual fluctuation of the temperature of the air at Port 



Kennedy ...... 21 



Figure B. Diagram showing the diurnal amplitude of the temperature . . .24 

 Figure C. Diagram showing the diurnal variation of the temperature . . .26 

 Figure 1. Diagram showing the mean velocity of the winds in Baffin's Bay, at Fort Ken- 

 nedy, and at Van Rensselaer's harbor .... . GS 



Figure 2. Diagram showing the relative frequency of the winds at the same places . 70 



Figure 3. Diagram showing relative quantity of air passed over at the same places . 71 



Figures 4 — 8. Diagrams illustrating five storms at Baffin's Bay . . 71.75, 7G 



Figure 9. Diagram showing the diurnal variation of atmospheric pressure in Baffin's liny 103 



Figure 10. Diagram showing the same for Port Kennedy . 104 



Fignre 11. Diagram showing a halo and paraselene, December I. ls. r >7 119 



Figure 12. Diagram of a halo, March T, 1858 .... .123 



