XXX 



LIST OF PLATES AND MAPS 



Fig. 

 33i- 



333- 

 338. 

 339- 

 352- 

 353- 

 360. 



363- 



364- 



37o- 

 373. 



375- 



378- 



381. 



384- 

 386. 



387. 

 389- 

 39°- 

 39 1 - 

 394- 

 406. 



439- 



445- 



446. 



447- 

 461. 



466. 

 467. 

 470. 

 484. 

 487. 



Prairie (meadow) with fringing- forest in a valley and solitary trees in de 



pressions, Woodburg, West Iowa ...... 



Upland prairie in Iowa, Plymouth Co. Cultivated land in the background 

 Algerian Sahara. Stony desert near Biskra ..... 



Algerian Sahara. Sandy desert. The great Chott Mebrir . 

 Trans-Caspian desert, Kara-bugaz, Jelgunn. Salsolaceae . 

 Trans-Caspian desert. Landscape north of Krasnovodsk, near the Uchok well 

 South-west African desert : Great Nama Land. Guos, watering-place between 



Angra Pequena and Aos. Sandy plain with Euphorbia sp. . 

 South-west African desert. Welwitschia mirabilis on a sandy stony plain to 



the north of Tsoaaub, Damara-land ....".. 

 South-west African desert. River bed of the Khusub near Gagugam, Nama 



Land ... .......... 



Mohave desert in Southern California. Yucca brevifolia .... 



North American desert. Cereus giganteus in the Gila desert 



Rocky desert in North-west Arizona. Great Canon of the river Colorado . 



'Big Bad Lands' of South Dakota, seen from the summit of the Sheep 



Mountain ............ 



' Bad Lands ' in South Dakota. Bare hills, with a few grassy tracts in the 



intervening little valleys ......... 



' Big Bad Lands ' of South Dakota. In the background : Sheep Mountain 

 Dry desert-like steppe, Sybil river, Wyoming 



to face p. 593 



594 



to face p. 608 



to follow fig. 338 



to face p. 618 



618 



627 



628 



628 



634 



„ 636 



,. 638 



,, 640 



,, 642 

 644 

 646 



Mexican semi-desert near Venadito to follow fig. 386 



Mexican desert near Saltillo. Echinocereus conglomeratus 



Mexican semi-desert. Agave and Cereus ingens 



Mexican semi-desert, San Geronimo, near Tehuacan ..... 



Florida. Double row of dunes near Daytona ...... 



Tundra and mountains on the coast of Novaya Zemlya, south of Matochkin 

 Strait 



In the Bolivian puna ........... 



Basal region of the eastern declivity of Orizaba, Mexico .... 



Montane region of Orizaba, Mexico. Temperate rain-forest 



Popocatepetl ...... .... 



Montane region, upper belt, and Alpine region, lower belt, of the South 

 Island of New Zealand, at 660 meters above sea-level. Valley of the 

 river Craigieburn ........ 



Alpine flora of New Zealand. Craigieburn Mountains 



Alpine flora of New Zealand. Craigieburn Mountains 



Montane region of Algerian Atlas. Cedars at Teniet el Haad . 



Rocks in Heligoland at ebb tide. Fucus serratus ... 



Rock marine vegetation in Heligoland ..... 



to face p. 648 

 to folloiv fig. 389 



39° 



to face p. 652 



686 



743 



» 748 



748 



to follow figs. 445-6 



to face p. 760 



,, 764 



764 



768 



795 

 796 



MAPS 



Annual Rainfall. 



Rain Chart of the Earth. Distribution of Atmospheric Precipitations according to the Seasons. 

 Distribution of the most important Types of Formations on the Earth's Surface. 

 Distribution of the Formations in North America, exclusive of Mexico. 



