ILLITSTKATIONS. 



Page. 



i^l■A^l'■ I— Map of the Great Basin, sUowiug position of Lake Lalioiitaii i 



II.— Jlap of routes of iravil and areas surveyed 20 



ni.— Map of pre-Quateriiary fault-lines of the Laboiitau regiou 28 



i'^'-— Map of tbe water surface and drainage area of Lake Laliouraii :iO 



v.— Map showing depth of Lake Lahonf an at highest stage 32 



VI.— Map showing land classification of the Lahoutan region m 



VII.— Map of the Carson JJesert, Nevada 44 



VIII.— Map of I he springs of the Lahontan basin 4K 



IX.— Map of Pyramid and Winneniuci-a lakes, Nevada r.fi 



X.— Map of Anaho Inland, ryrunii<l Lake, Nevada --.S 



XL— Sketch of Pyramid Island, Pyramid Lake, Nevada (fruin a iih<,l„,,,(ipli) (lu 



XII.— Sketch of the Needles, Pyramid Lake, Nevada (Jrom a pholuiiraph) ()•„> 



XIII.— Sketch among the Needles [fruin. plioloi/nij}],) m 



-^IV.— Sketch of Mushroom rock, Analm Island q; 



XV.— Map of Walker Lake, Ni^vada 71) 



XVI. — Map of the Soda Lakes, near Kagtown, Nevada 71 



XVIL— Sections of the crater walls inclosing the Soda Lakes, Nevada TC. 



^^'111-— Map of gravel cndjankments at thi^ west end of Ihinih(ddt Lake, Nevada KK; 



XIX.— Map of gravel embankments on southern border of tln^ Car.son 1 )es(it. Nevada- 1 1'J 



XX.— Map of gravel embankments at ISuHalo Spriiigs, Nevada UG 



XXL— Jlap of gravel embankments three miles south of IJul'alo Springs Us 



XXII.— Humboldt Canon, near Kye Patch, Nevada (from a pliohxjruph) \>.\ 



XXIII.— Sections of Lahoiftan scdiuuuits in Humboldt Cancm, Nevada \->i\ 



X^IV.— Sections of Lahontan .sediments in Truckee Canon, Nevada l:W 



XXV,— Sections of Lahontan sediments near Agency Bridge, Truckee CaTiou i:M 



XXVI.— Section ol'Lahonlaii sedlmentsat Agency Bridge, Tru(d<e.e Canon, Nevada.. VM't 



XXVII. —Section of Lahontan si^diments, Irnckee Canon 13ti 



XXVIII. —Sections of Lahontan sediments in Walker Kiver Canon, Nevada 14(1 



XXIX.— Mai> of the present drainage areas of the Lahontan basin 150 



^XX-— 'i""*''! i'''ag at Alleii's Springs, Nevada, (/rom a plwtur/ruph) 186 



XXXL— Mail of the water surface of Lake Lahoutan at the thinolite stage IJId 



XXXIL— A characteristic specimen of thinolite (/row « j;/io^)7r»j);i) ..._ .. . 194 



XXXIII. — Illustrations of (he structure of thinolite lyd 



XXXIV.— Illustrations of the struclure of thinolite ly^ 



XXXV.— A characterist ic specimen of dendritic tufa (from u phohxjraph )... -zo-i 



XXXVI. —Dendritic tufa deposited on a clilf (from a pliiih>ijrui>h ) 2U4 



XXX VII. —Imitative tufa forms (frvm a photop-aph) oyu 



XXXVllI.— An island of tufa in I'yramid Lake (from a pliotoijruph) 208 



XXXIX. —Tufa towers on the shores of Pyramid Lake (from u plwlof/rupli ) 210 



XL.— Tufa castle, west shore of Pyramid Lake, Nevada (frvm a plioloyraph) 212 



XLL— Tufa domes in Pyramid Lake (frnm u photdijrtiph) 214 



XIII 



