Insects and Inse:cticidks 
.S5 
them a center drive that produces a solid cone of spray, instead of the 
hollow cone. With the solid cone there is less likelihood of missing 
parts of the plants, and the wind does not catch the spray as badly. 
Good work can be done with both types of nozzles. 
STATION BULLETINS 
All available bulletins will be sent free on request to residents of this 
State. 
The following: are bulletins that are available at the present time: 
No. Title 
135.—A Few Orchard Plant Lice. 
150.—Measurement and Division of Water. 
157.—Arsenical Poisoning of Fruit Trees. 
168—Deterioration of Manures Under Semi-Arid Conditions. 
169. —Some Insect Mites Attacking the Peach in Colorado. 
170. —Thinning the Winesap. 
172. —Garden Notes. 
173. —Notes on a Dry Land Orchard. 
174. —Adobe as a Building Material for the Plains. 
176. —Productiveness and Degeneracy of the Irish Potato. 
177. —Hold-over Blight in Pears- 
182. —Colorado Climatology. 
183. —Deterioration in Quality of Sugar Beets. 
186. —Fixation of Nitrogen in Colorado Soils. 
187. —Feeding Experiment with Lambs. 
188. —P.ation Experiments with Swine. 
189. —Cost of Beef Production on Enclosed Range- 
190. —Variation Studies in Brome Grass. 
192. —Home-made Cider Vinegar. 
193. —Nitrifying Efficiency in Colorado Soils. 
194. —Frictional Resistence in Artificial Waterways. 
195. —Small Fruits for Colorado. 
196. —Some Soil Changes Produced by Micro-organisms- 
197. —Hog Cholera and Necrotic Stomatitis. 
198. —Onion in Colorado. 
199. —Vegetable Growing in Colorado. Common Insects of the Garden. 
200. —Silos and Silage. 
201. —Mushrooms. 
203. —Farm Costs on the Colorado Agricultural College Farm. 
204. —Brisket Disease. High Altitude Disease of Cattle. 
205. —Yellow-berry in Wheat- 
206. —Spur Blight of the Red Raspberry. 
207. —Some Miners’ Inch Measuring Devices. 
208. —A Study of Colorado Wheat. 
209. —Irrigated Agriculture in the San Luis Valley. 
210—Insects and Insecticides. 
211. —Colorado Plants Injurious to Livestock. 
212. —Fungous Diseases of Colorado Crop Plants. 
213. —Poultry Raising in Colorado. 
214. —Forage Crops for Colorado Plains. 
