DIAGRAM SHOWING THE NUMBER OE DUST PARTICLES IN THE ATMOSPHERE AT BEN NEVIS AND KINGAIRLOCH 



DURING JULY 1890. 

































































Trans. 



Roy 



Soc 



Ec 



m 1 :- 



Vol 



ZXXVli 



7\"\^-»/T 



\ T\\/T 



, /^ <- 





^ 





j 



s 





^ 



s 



1/ 



' f 



/ 



7" 



' 1 



t 



/I 



? 





l 



? 



/ 





N.^TV\ 



















6000 

 5000 

 4000 

 3000 

 2000 

 1000 















































































6000 















































































\ \1' \! - , 



>/_ 



\> 





\ 



\ 







\ 



— *- 



<__ 



1 



' 









V 



\\ 



' 



\ 



' 



»- 



' 



> 



— V- 



' 



— £— 







^ 

















5000 -*:?—-*< y"\ / 

















/ 







> 



, 























;i 







/ 



\ 







/ 













I nun 























































^* 



i 





















4UUU 















\ 





































1 



^ 



^ 



11 





















on/in 



II 











i 



\ 









\ 



























J 



\l 



























6\l\)\l , 



jt -Hk-- 











/ 



) 



I 





1 



\ 



L 

























/ 



v 







I 





















CflflA ■r - **"i\ 



H -A- 











/ 





V 





1 





\ 













I 











y 



> 



I 







I 





















MO -flf jk 



£vWT\ 











/ 





\ 





/ 





\ 



VI 



Jl 





1l 



A 



/ 



L 









/ 





\ 



























40fift i-i / -\l 



A\SKl- S 



^ _ 







}h 







\ 



/ 







V 



\ 





II 



r 



/ 



\ 







> 



> 





» 



**•* 



V^ 



Li 





















m jstXZ - 



xA ^Qt- > 



^^ft^ 



k 





7 





\y 



\ 



V 



I 







7 



\ 



V 



r 



**• 



^ 



r* 



> 



A 



/ 









v ^ 



N 



N^ 



















,j *^ 



^ r L/H*^ 



f^ 



SM 



r 



w 





¥ 



L 



J* 



1 



\ 



V 



/ 



i 



s* 



* i 



fcn 







^v 



r 





v 









1 



! 



^. 



*•* 



r 



«^ 



-* 1 



^ 







DATE. J_ > *-4'\ 



\2I\ \^ 



S^ 



•* 





V 



•\ 







— > 



1 







s# 



k 





■^ 







^ 







J 



k 





1 



^ 







/ 







/-i 





DATE. 



1 ' W 



- It 



iv 



I 



*— * 



1 





t 



t 



\ 



>—> 



I 



I 



\ 





s 



hj-^^vy 



"i 





\ ' 



"■- 



? 



? 



A 



^^^ 



^ 









/V 







•s, 



6000 

 5000 

 4000 

 3000 

 2000 

 1000 



DATE. 



6000 j - 



































































-4— 















i 



f 







































































5000 \^~4£ —i' 



-HX^ C 



"J 



J 



\ 





















\ 





\J 



\ 





V, 





f~-^ 





\ 































/s y \ 



L ^r " \ 



/ 











\ 





































* 



t 



^T7 





' — i 







— * 





7 





— » 





4000 -J- - 





/ 









































































I • 





' 









































































3000 Z -A 













































































2000 2 EL 

 1000 ■ -J- J 





\ 



A 



A 



Mi 



f 



\ 







>l 



K 







^ 



\ 





*?vv. 





\*\ 







v sa t 





N^t 







tv 



\ 





-18- 





The Thin Line Bhows the number of Particles at Ben Nevis. 

 The Thick Line shows the number of Particles at Kingairloch. 



The Upper Arrows show the direction and force of the Wind on Ben Nevis. 

 The Lower „ „ n _ at T^g^iv^ 



The Intermediate „ „ of the w-inds over the British Isles. 



