Xiv LANDS OF THE ARID REGION OF THE UNITED STATES. 
THE RAINFALL OF THE WESTERN PORTION OF THE UNITED STaATES—Continued. 
Distribution of rain through the year..---------------. ------ ---- --- = eee een ree ee eee 
Precipitaton ot lexag meee eens ena eemiaee san welee aa ae elem eee =e i 
Precipitation of Dakota .....--------------- ---- ---- === 2-0-2 = ee enn rns enn ne mene corner 
Seasonal precipitation in the Region of the Plains --.-..-.---------------- ---- +--+ ---+--++- 
Seasonal precipitation in the San Francisco Region..-..----- +--+ +--+ ---+ --++ +--+ +--+ ---+-- 
Mean temperature, by seasons, for the San Francisco Region..-.-..------------------------ 
Seasonal precipitation and temperature on the Pacifie Coast, ete.-.---.-------------------+- 
Seasonal precipitation in Arizona and New Mexico .----- ------------------- Aaesatessoancese 
CHAPTER IV. 
WaTER SuppLy.—By G. K. GILBERT: 
IncreaseOlmstrealns cases aoe anes ae se cole ose e hennien eta mte = = melee eet (oe miele > 
Tats? Gram osinLE Cs soso comaedeose sasaAe BSSasodSsne conSso Se nscoss seqoce Sado besos ona9 
Wiolcanienbheory eee == sions sen aa aie melee se ee ee wee ee lane 
(iinibhnkealGiay poemoe caeano Ree eee nosebco des sotach pads ComeSc eo sess RoSesc beSE aces SCS 
Theory of human agencies ...-. -. ------ 02.0 22-3 -~ cee ne wens enews nwo e san ene www mann 
Farming without irrigation......---. ..---- .-2--- ---- ---- 2+ -- 2-3 = conn ne ones ee enn e oan eee = 
CHAPTER V. 
CERTAIN IMPORTANT QUESTIONS RELATING TO IRRIGABLE LANDS: 
iPHe amitiob sw aber WSO im ArT O's LOW ee eres ste ee atta se ce lel eel tae tele 
The quantitative value of water in irrigation ---.-....--. ---------- ..---- -----------+ ------ 
Area of irrigable land sometimes not limited by water supply-.----.:-----.------------------ 
Method of determining the supply of water....--..---.---- .-----2- 22-020 «+= - 22 eons eee 
Methods of determining the extent of irrigable land unlimited by water supply ---.---------- 
The selection ofirrigable lands. ~~ = 22.5. <<. oi - oan ence ene a aan een 
increassanwohe mater supply ae sers sam celem ae seis see eats a ne alee ete alae 
CHAPTER VI. 
THE LANDS OF UTAH: 
Teaser TEN Abels seo aoe ss ESS 6 GS S08 BE QCOd 0506s ooc0 code sabmes Coos sesSesenSoSeeS a 
Wirt) 61) ee po mG EEG HSB Ea SEE OOSEEe cOneod Basnbocbcs checds sdacos Sdaecd cSesds ocm5¢ 
Irrigable and pasturage lands .....-.. .-.- ---------+ 220-20 --- 22+ oo snes we === === --- 
LOSI BERENS ooo msoasOseeo SanootoSo To neeces DOSED caso mores sous Sasse6 
Dare Ohio) ILERVG Goo Gomcosneoenee sececo CooRS, SoHo Sect enc HE soOseres cece ocoenoscs 
Thelsevierwuake DiSttiebass==ae aetna isan alates ee laine ele le eel 
The Great Salt Lake District....-.-...-..-.. COE CED REED SROS CQHO RCO SECOUS SoREnD oSans = 
(pe EES) aosogens cosneS SOSESo boob Huse Geos SOSee> SESE Sc Gone ashe SHoSaa ens nesses SacSeinicacc 
Table of Irrigable lands in Utah Territory -....----.-------------- ---- ------ -----+ +--+ 
CHAPTER VII. 
TRRIGABLE LANDS oF THE Sarr LAkE DrarNaGE SystemM.—By G. K. GILBERT: 
Lrrigation by the larger streams. .... .---..---. .----- ------ ++ - 0-0 = 2-2 = eee oe eee eens 
Bear River draimage basin ...--..-...--- ---- s----2 ---- ---- ---- oo = 2 2 = se enn e === =e 
Weber River drainage basin .....-.--..----- --- == - 2-2 eo - oan enn on no ow one -=- == 
Jordan River drainage basin. ...-.. 2.2. 2200-2 == 200 - see ene <= n= en nnn eons === === 
Irrigation by smaller streams........----- -o 2-02 ccna oon ene on ene mone on nnn s conn ee one e = -- = 
CHAPTER VIII. 
TRRIGABLE LANDS OF THE VALLEY OF THE SEVIER RrvER.—By Capr. C. E. Dutton: 
Altitudes of the|Sam Pete Valley <2 = -c-\.<cse- 2] erlenoniee = nan anaelemeaaeeecl= nena aa. ana 
Volume of flowing water in San Pete Valley....-.------------ daacSanaciac aenboeiogagnDEo ones 
Trrigable lands of the Sevier Lake District......--....----------------++ -------------- O05 
98 
103 
103 
105 
106 
106 
107 
111 
117 
119 
121 
124 
126 
133 
140 
144 
