-o- N---D- } F . : -Mi., Ap. . . M^.,V. : JL .. : .AIL.,..*,. -,o. ; N. 



fei^l: 





; 4oy 





p@ 



^^" 















fll 



\I-;in tcnipcrntiir*' diniri-.-iins I'm- tlic yr.-ir. A. .M;i nnimt li 



i'ellowgtone r.-u-k. nititudc (ILMKI fM>i. r,. AUMCOH.IM. 

 Mltiiu.l.-. C, riiilii^lini-L'. .-illitudc. .VJT-", feet. I>. (>v;iii(lo. 



:i!iiiu.|.-. noi feel i Missoula, altitude, 3212 feet. F. Tm.v. siliiimlr. 



]wi, feet Tli- fiiriin- ;il tin- riu'lil ri-|in-<ciil the ratios <if the irnwini: 

 'I'lir iiif.-in ti-iii|HT;itiin>s for the inontlis nrc 

 on tin- Curves ini<l\\;iy iM-tun-n UK. v.-riic.-il lines. 



48 



