10 



DISCUSSION OF THE VERTICAL FORCE. 





Table II 



— Cont 



//?((('(/. 



Vertical Force 



Readings at (50° Fah. 





1843. 



0" 



2 



4 



6 



8 



10 



Noon. 



14 

 + 17"' 



16 



18 



20 



22'' 



+23J- 



.I.iiiu.iry 

















fis5 













February 





























March 















676 













April 

 May 



715 



713 



713 



712 



708 



702 



705 



687 



697 



696 



706 



709 





698 



697 



695 



690 



683 



680 



677 



666 



678 



679 



e97 



690 







696 



691 



693 



690 



677 



669 



664 



660 



659 



671 



681 



690 





July 



692 



693 



693 



689 



681 



673 



664 



660 



660 



667 



678 



686 





702 



703 



707 



705 



695 



682 



670 



672 



672 



682 



694 



698 







722 



720 



721 



■716 



707 



705 



694 



693 



694 



701 



710 



708 





October 



714 



70S 



714 



717 



704 



703 



702 



703 



704 



714 



719 



714 





November 



740 



737 



744 



744 



743 



740 



734 



735 



746 



750 



748 



74o 





December 



749 



737 



740 



740 



739 



728 



724 



738 



755 



759 



762 



754 













Additional odd liou 



•s observed. 









1 



1843. 



l" 



3 



5 



7 



9 



11 



13 



15 



17 



19 



21 



23'- 



+23J" 





710 



709 



718 



712 



704 



700 



701 



702 



709 



717 



715 



717 





November 



737 



740 



745 



747 



742 



735 



731 



741 



750 



751 



746 



747 





December 



744 



738 



742 



743 



738 



720 



726 



747 



755 



763 



756 



757 





Notes to the above table : — January 4tli, February 1st, and March 24th, observations 7"", 71"", and 

 20" late, respectively. In April seven readings were supplied by the observers, also one in May 

 and one in June. July 14th, O*" 2S^'^, observation 6" late. August 10th, IG"" 23^", observation sup- 

 plied l)y observer. August 29th, O*" 2.3|'°, observation 12™ late. September 20th, O"" 23^"", tempera- 

 ture supplied by observer. November, six readings supplied by observers. December 1st, 4'' 231" ; 

 December 9th, l"" 23^"; December 12th, 21'" 23^", and December 22d, S"" 23^™, observations 5", 6", 

 15", and 8" late, respectively. December 19th, 2'' 285", a printing error of 200 scale divisions was 

 corrected. December 30th, O"" 23^", reading supplied by observer. 





Table II. 



— Cont 



intied. 



Vertical Force Readings at G6° Fail 







1844. 



0" 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11" 



+23A- 



January 



735 



733 



731 



731 



733 



736 



733 



733 



731 



730 



726 



717 





February 



736 



731 



729 



730 



733 



732 



733 



734 



727 



725 



727 



720 





March 



763 



758 



758 



759 



760 



762 



763 



760 



755 



759 



761 



762 





April 



7':6 



765 



763 



765 



766 



765 



763 



759 



752 



751 



746 



740 





May 



772 



769 



766 



768 



767 



764 



760 



754 



749 



747 



747 



744 





June 



778 



776 



772 



772 



771 



768 



765 



7i.O 



752 



750 



749 



747 





July 



809 



807 



803 



802 



801 



798 



794 



789 



780 



779 



778 



777 





August 



794 



792 



788 



787 



785 



783 



780 



774 



768 



765 



761 



759 





September 



815 



813 



811 



808 



809 



807 



805 



802 



796 



793 



788 



783 





October 



779 



776 



773 



776 



778 



780 



781 



782 



775 



774 



775 



771 





November 



775 



771 



768 



769 



772 



772 



771 



773 



768 



772 



772 



767 





December 



756 



752 



753 



754 



756 



757 



756 



7uO 



752 



752 



754 



749 





1844. 



Noon. 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23'' 



+23^™ 



.January 



717 



713 



717 



724 



732 



740 



743 



745 



747 



746 



744 



745 





February 



716 



719 



720 



723 



731 



735 



742 



743 



743 



739 



738 



737 





March 



758 



751 



752 



755 



752 



751 



751 



749 



750 



751 



759 



762 





April 



739 



735 



738 



744 



750 



754 



758 



764 



764 



762 



765 



766 





May 



744 



740 



740 



744 



746 



748 



753 



762 



765 



766 



768 



772 





.luno 



746 



745 



748 



752 



754 



757 



765 



772 



775 



774 



775 



778 





July 



776 



775 



772 



778 



780 



787 



795 



801 



804 



804 



806 



809 





.\ugU3t 



756 



756 



752 



765 



767 



769 



777 



787 



788 



788 



790 



793 





September 



779 



777 



766 



791 



790 



793 



804 



810 



809 



810 



812 



815 





October 



769 



767 



771 



778 



787 



789 



792 



790 



786 



786 



782 



782 





November 



766 



763 



761 



758 



774 



779 



777 



778 



774 



770 



769 



772 





December 



745 



739 



740 



735 



750 



750 



754 



753 



753 



750 



751 



754 





