420 



Report of Magnetical Observations at 



Table III. — Hourly Means of tbe Horizontal Force at Falmouth 



„ /r . „ „ .: x on five selected quiet Days in 



0-18000 + (C.GkS. units.) ^ J 



Hours 



Mid. 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



"Winter. 



1895. 



























Months. 



























Jan. . . 



530 



530 



531 



532 



533 



535 



537 



540 



536 



531 



525 



522 



Feb. .. 



534 



533 



533 



533 



535 



537 



539 



538 



536 



531 



523 



516 



March . 



553 



549 



551 



551 



552 



553 



554 



552 



549 



536 



525 



522 



Oct. .. 



560 



557 



556 



556 



558 



557 



555 



556 



551 



541 



531 



529 



Nov. .. 



548 



550 



554 



554 



555 



557 



558 



559 



558 



551 



546 



542 



Dec. .. 



555 



555 



556 



559 



561 



562 



564 



565 



563 



559 



550 



547 



Means 



547 



546 



547 



548 



549 



550 



551 



552 



548 



542 



534 



530 



Summer. 



April . . 



550 



548 



546 



543 



540 



540 



540 



535 



528 



518 



508 



501 



May .. 



554 



554 



549 



548 



548 



547 



544 



539 



530 



523 



516 



522 



J une . . 



555 



551 



550 



550 



549 



547 



542 



535 



526 



519 



515 



516 



July .. 



558 



558 



559 



558 



556 



553 



547 



543 



537 



528 



522 



521 



Aug. .. 



565 



565 



562 



559 



559 



557 



555 



548 



542 



535 



527 



525 



Sept. . . 



550 



549 



550 



549 



549 



550 



549 



544 



535 



524 



519 



520 



Means 



555 



554 



553 



551 



550 



549 



546 



541 



533 



525 



518 



518 



. x Table IV.— Diurnal Range of the Falmouth 



1. units.) 



Hours 



Mid. 



1 



2 



3 



4 



5 6 



7 



! 8 



9 



10 



11 





Summer mean. 





+ -00007 



+ -00006 



+ -00005 



+ -00003 



+ -00002 



+ -00001 - -00002 



- -00007 



- -00015 



- -00023 



- -00030 



- -00030 



Winter mean. 





+ '00001 



•00000 j+ -00001 



+ -00002 



+ -00003 



1 



+ -00004; + -00005 



1 



+ -00006 



i 



+ -00002j- -00004 



- -00012 



- -00016 



Annual mean. 





+ -00004 



+ -00003 



+ -00003 



+ -00003 



+ -00003 



+ *0000sj+ -00002 



- -00001 



- -00007 



- -00014 



- -00021 



- -00023 



Notti. — When the sign is + the 



