INDEX. 183 
Profiles— ee Riddellia Ra 
Instruments used in determination 9 DS ARRA 164 
Table of observations for determining from El a nen 166 
Paso to Preston 108-110 | Rubus 164 
Table of observations for determining from Em- Mr eu odio iqq £i aceta tice notcacdl 174 
igrant Crossing of Pecos to Big Springs of the Tio 164 
Colorado .. 111 | mRutacem 161 
Table of observations for determining through tidocary 171 
San Augustine Pass of the Organ mountains. M | aw 161 
Panicum 176 
Parietaria A kuwu 175 8. 
Parony chin 160 Sacramento mountains 31 
Parthenium 166 | Sacramento river 65 
Passaveracece 159 | ii Elizario 6, 32 
Passiflora 165 | San Tomas village ..---. 6 
Passifloracece 165 Sanchez, chief of Camanches. ...... ...........-.- 81 
Pectocarya 171 Santa Fé t 47-48 
Pentalophus .. 171 | gand-hille 69 
Pentstemo 168,169, 178 Character of, on hills adjoining Llano Estacado. 9 
Perezia 167 + H 
Selection of route across the plains 21 
Petalostemon : 
Phacelia 172,178 Og a 
á Settlement of Texas 48 
Phalaris 176 Sierra de los Alamo 54 
hlox . 172 Simpson, Captain, reference to report of. 9 
Physalis 178 ilg— 
nu M 174 Plan of collecting 2 
hytolac "ia Submitted to 3 
Fieradenia 107 Preliminary report on 95-97 
Pinaropappus .... 160 Analyses of 95-97 
Planera 175 : 
ene Springs— 
As fita do i —— M : ^! d 
g Independence 11, 30 
Poa 1 176 Mineral " 2-32 
Polemoniacez 172 Mustang 71,97 
Potamogeton 176 Ojo del Cuerbo 11, 30,55 
Polygala 162 Ojo del San Martin 52 
Polygalaceæ 162 Ojo de la Solidad 52 
Polygonaceæ Pies Sulphur, of the Colorado 11,78, 97 
Polygonum 174 (See Tanks.) 
Poly taenia 165 | Staked Plain.—(See Llano Estacado.) 
nulac 168 Stem, Colonel Jefferson, Indian agent ....... ...... 86 
pi 163 Stone for building, near head of Delaware creek .... 23 
Prunus 164 Colorado valley 27 
d 176 on Delaware creek 29 
Psoralea ......-......-......... .......--. Lus. 163 between Red river and Llano Es- 
Pteris 1 tacado 40-41 
Ptilocalyx 170, 178 Llano Estacado 41-42 
Pyrrhopappus 165 between Pecos river and Rio 
: Q. Grande 49-45 
Quercus ... 175 — x igiene dos 
Sabbatia 173 
R. Salieaceae 175 
Red fork of the Coloradó. «4... 24-en cuore sh. xc © 85 | Salvia — 
Red river and valley 10, 25-26, 29 vias 169, 178 
Rio Grande and valley 6, 31-34 | Santalacew .... 175 
R 1 159 | Sapindacee .... ..---- e---- 162 
Rhamnacez ... 162 | Sapindus = 
Rhus 162 Sehrankia 164 
Ribes s 165 | Scilla 176 
