/o 'Coi.oRADo Experiment Station 
Mechanically injurious grasses.18 
Mildews . 8 
iMilkweed 
green-flowered . 5> 
low . 57 
showy . 57 
whorled . 57 
Millets . 18 
Molds .‘. In 
Monkshood . 34 
Mosses . 14 
Mushrooms . 12 
Needle-grass . 20 
Nelson’s larkspur. 29 
Nightshade, poisoning by. 59 
Oat-grass . 18 
I’arsnip, cow. 54 
garden . 52 
water. 5i 
Pastinaca sativa. 52 
Pea family. 37 
Penhard’s larkspur ..•. 29 
Phyllachora graminis._. 12 
Poison ivy. 48 
Poison oak . 48 
Poionous grasses. 16 
Porcupine-grass . 18 
Poverty grass . 18 
Powdery mildew. 8 
Preventive measures. 5 
Prunus besseyi. 35 
melanocarpa . 35 
pennsylvanica . 35 
Pteridium aquilinum.,.. 14 
Pulsatilla hirsutissima. 27 
Purple larkspur. 29 
Purple loco. 41 
I’urple stramonium . 62 
Quercus . 25 
R'abbit brush. 26 
Rhus cismontana. 48 
rydbergii . 48 
trilobata . 49 
Richardson’s loco. 43 
Rubber plant. 66 
Russian thistle. 27 
Rusts . 9 
Sage . 64 
Salsola pestifer. 27 
Saltbush . 26 
Sand-bur . 18, 60 
Sand cherry. 37 
Sand-lily .22 
Saponaria vaccaria. 27 
Sarcobatus vermiculatus. 25 
Scouring rush. 14 
