HYGROMETRIC RESEARCHES. 



563 



p^ 





Dust particles per 

 cubic centimetre. 



"S3 



o o o 



o O O 



O O C O 



o o O O 



00 



5 



03 03 



J~ W M J. 



a ° W W W ° 

 O 00 CO CO CO CO 



,-1 j>, i-l r-l ^ 



►*. rH -— '3 



£ £ >. 



cococococoOcococococo 



•H OS 



Mass of Vapour per 



cubic metre of Air 



(grammes). 



o 



o 



o 



OS 



o 



o 



oa 



m 



lO 



o 



o 



o 



o 



o 



o 



o 



o 



o 



\a 



o 



o 



o 



o 



o 



o 



o 



lO 



lO 



o 



Oi 



oo 



OD 



rH 



<N 



ca 



rH 



-o 



to 



oo 



00 



on 



cr, 



o 



o 



o 



Q 



o 



OS 



o 



OS 



a-. 



OS 



as 



o 



o 



o 



^-1 



!_l 



u- 



IQ 



m 



W^ 



US 



m 



IO 



o 



"to 



"O 



m 



>o 



VO 



to 



to 



to 



to 



00 



m 



--C 



US 



UO 



m 



m 



to 



<r> 



to 



co 



to 



1^ 



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t— 



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lO O (D lO 



I I ! I I I I I 



m to to to to t>» 



i— I (N Oi J— 



O +3 



I I I I I I I I I 



io in o m io in 



S"« 2.0 



a ^ os +j 



as 



as 







o io co go o 



°CO CO CO <M CM 



I I I I I I I 



CO ^ CO O Ifl Ol 

 I I ^h os OS J>- i— t Ah 



co CD 



lO O iO 



'Jl M ■* M N 



CO -* •** 



cococp*ococooooososos 



GOGOGO.t>.COOSOOSOOStf5 



lO OO f-i 



os o> o c<i 



vo os co co 



oo CO CO 



(N W (M H <M 



lO CO OS 



Oi^cooooooococpooco 

 oooosasvoiAirs \a i» o ia o 



CNCMOSCOCOOSOlOCOCOCM 



OlOiO^lOOO^cOT 



I I I I I I I I 



COOOCOOSTiHOCNIiOCO 



OS m r-H ift OO lO 

 THHiO"*VOCOOr^OO 



OO O lO 



CO GO CO CO UT5 *-• 



i> CO 



II 



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o o o j~- o o 



o O O CO O i— I 



os to os to t— ir^-<*<Nto 



COOO»— 'X^OUTSCMX-^ 



t^ t-i OO 



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t-IOCMOOO-^t-IO 



ooooooooo 



CO 



r-i o 



q£ 



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o 



--OCOrHir5t^.f-^COO^ 05»ft<MlOt-*X^.f»00OS"^ , l^-rHlClO 



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OOOOO^c>0C0^^C3^rH^^C0O^^c0O l 0C»c©Oir}000St-H 

 9' T 1 7" 1 ^ 7" ,< p7 H< pOOi— iO<— 'OOcp<pOOcDOOOOOO<3>Oi— < 



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i^cpooosco^coo^coc^i^ooc^o^c^wcpoi^o^^oo^ 



-#osCN^^coo^*c^Jcococooc^^c<^'^05C)o^<^'^^ ( ^'* c oooI-H^-^co 

 oiococ^cqcoo<>icocoioxooc>lG<i<NO^^^^^T^^ c ;'^^^ 



COlCCCOC^rHI^C^JrHCOT^l^O^OSCOUi0^^010CO'«*^'^COC>l•^t^COI— lOOCN 



w 



CO 1-H f— ( -«^ t^- 



1—1 m ** "^ I— I 



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i— < -*> CO (M 



»-» CO l^ o 



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<N r- lO CO 



tfi co os o: 





CO O (M 



cococoirtco»ooo^oo 



CO <N ^ *0 -^ CO t— I 



oo co »o CO CO t-— 



,-i -rp -rH CO O XO I— I 



H« 



OO CO CO CO CO 



■*1 



CO CO lO 



r-HtMCO-^lOCOl— COOS 



•*& lO CO 



CM CM <M CM CM CM 



