Since there was practically no trouble experienced in the unparaffined boxes, there is no advantage in paraffining the inside of the box.

Since the completion of the investigational work, approximately 40,000 white fir boxes have been used with entire satisfaction for shipping butter at the University Farm.

STATION PUBLICATIONS AVAILABLE FOR FREE DISTRIBUTION

BULLETINS

No.
253.Irrigation and Soil Conditions in the Sierra Nevada Foothills, California.
261.Melaxuma of the Walnut, “Juglans regia.”
262.Citrus Diseases of Florida and Cuba Compared with those of California.
263.Size Grades for Ripe Olives.
268.Growing and Grafting Olive Seedlings.
270.A Comparison of Annual Cropping, Biennial Cropping, and Green Manures on the Yield of Wheat.
273.Preliminary Report on Kearney Vineyard Experimental Drain.
275.The Cultivation of Belladonna in California.
276.The Pomegranate.
277.Sudan Grass.
278.Grain Sorghums.
279.Irrigation of Rice in California.
280.Irrigation of Alfalfa in the Sacramento Valley.
283.The Olive Insects of California.
285.The Milk Goat in California.
286.Commercial Fertilizers.
287.Vinegar from Waste Fruits.
294.Bean Culture in California.
298.Seedless Raisin Grapes.
304.A Study of the Effects of Freezes on Citrus in California.
308.I. Fumigation with Liquid Hydrocyanic Acid. II. Physical and Chemical Properties of Liquid Hydrocyanic Acid.
312.Mariout Barley.
317.Selections of Stocks in Citrus Propagation.
319.Caprifigs and Caprification.
321.Commercial Production of Grape Syrup.
324.Storage of Perishable Fruit at Freezing Temperatures.
325.Rice Irrigation Measurements and Experiments in Sacramento Valley, 1914-1919.
328.Prune Growing in California.
331. Phylloxera-Resistant Stocks.
334. Preliminary Volume Tables for Second-Growth Redwoods.
335. Cocoanut Meal as a Feed for Dairy Cows and Other Livestock.
336. The Preparation of Nicotine Dust as an Insecticide.
337. Some Factors of Dehydrater Efficiency.
339. The Relative Cost of Making Logs from Small and Large Timber.
341. Studies on Irrigation of Citrus Groves.
343. Cheese Pests and Their Control.
344. Cold Storage as an Aid to the Marketing of Plums.
347. The Control of Red Spiders in Deciduous Orchards.
348. Pruning Young Olive Trees.
349. A Study of Sidedraft and Tractor Hitches.
350. Agriculture in Cut-over Redwood Lands.
351. California State Dairy Cow Competition.
352. Further Experiments in Plum Pollination.
353. Bovine Infectious Abortion.
354. Results of Rice Experiments in 1922.
355. The Peach Twig Borer.
357. A Self-mixing Dusting Machine for Applying Dry Insecticides and Fungicides.
358. Black Measles, Water Berries, and Related Vine Troubles.
359. Fruit Beverage Investigations.
360. Gum Diseases of Citrus Trees in California.
361. Preliminary Volume Tables for Second Growth Redwood.
362. Dust and the Tractor Engine.
363. The Pruning of Citrus Trees in California.
364. Fungicidal Dusts for the Control of Bunt.
365. Avocado Culture in California.

CIRCULARS

No.
70. Observations on the Status of Corn Growing in California.
82. The Common Ground Squirrel of California.
87. Alfalfa.
111. The Use of Lime and Gypsum on California Soils.
113. Correspondence Courses in Agriculture.
117. The Selection and Cost of a Small Pumping Plant.
127. House Fumigation.
136. Melilotus indica as a Green-Manure Crop for California.
144. Oidium or Powdery Mildew of the Vine.
151. Feeding and Management of Hogs.
152. Some Observations on the Bulk Handling of Grain in California.
153. Announcement of the California State Dairy Cow Competition, 1916-18.
154. Irrigation Practice in Growing Small Fruit in California.
155. Bovine Tuberculosis.
157. Control of the Pear Scab.
159. Agriculture in the Imperial Valley.
160. Lettuce Growing in California.
161. Potatoes in California.
164. Small Fruit Culture in California.
165. Fundamentals of Sugar Beet Culture under California Conditions.
166. The County Farm Bureau.
167. Feeding Stuffs of Minor Importance.
170. Fertilizing California Soils for the 1918 Crop.
172. Wheat Culture.
173. The Construction of the Wood-Hoop Silo.
174. Farm Drainage Methods.
175. Progress Report on the Marketing and Distribution of Milk.
178. The Packing of Apples in California.
179. Factors of Importance in Producing Milk of Low Bacterial Count.
182. Extending the Area of Irrigated Wheat in California for 1918.
184. A Flock of Sheep on the Farm.
188. Lambing Sheds.
190. Agriculture Clubs in California.
193. A Study of Farm Labor in California.
198. Syrup from Sweet Sorghum.
199. Onion Growing in California.
201. Helpful Hints to Hog Raisers.
202. County Organizations for Rural Fire Control.
203. Peat as a Manure Substitute.
205. Blackleg.
206. Jack Cheese.
208. Summary of the Annual Reports of the Farm Advisors of California.
209. The Function of the Farm Bureau.
210. Suggestions to the Settler in California.
212. Salvaging Rain-Damaged Prunes.
214. Seed Treatment for the Prevention of Cereal Smuts.
215. Feeding Dairy Cows in California.
217. Methods for Marketing Vegetables in California.
218. Advanced Registry Testing of Dairy Cows.
219. The Present Status of Alkali.
224. Control of the Brown Apricot Scale and the Italian Pear Scale on Deciduous Fruit Trees.
228. Vineyard Irrigation in Arid Climates.
230. Testing Milk, Cream, and Skim Milk for Butterfat.
232. Harvesting and Handling California Cherries for Eastern Shipment.
233. Artificial Incubation.
234. Winter Injury to Young Walnut Trees during 1921-22.
235. Soil Analysis and Soil and Plant Interrelations.
236. The Common Hawks and Owls of California from the Standpoint of the Rancher.
237. Directions for the Tanning and Dressing of Furs.
238. The Apricot in California.
239. Harvesting and Handling Apricots and Plums for Eastern Shipment.
240. Harvesting and Handling Pears for Eastern Shipment.
241. Harvesting and Handling Peaches for Eastern Shipment.
242. Poultry Feeding.
244. Central Wire Bracing for Fruit Trees.
245. Vine Pruning Systems.
247. Colonization and Rural Development.
248. Some Common Errors in Vine Pruning and Their Remedies.
249. Replacing Missing Vines.
250. Measurement of Irrigation Water on the Farm.
251. Recommendations Concerning the Common Diseases and Parasites of Poultry in California.
252. Supports for Vines.
253. Vineyard Plans.
254. The Use of Artificial Light to Increase Winter Egg Production.
255. Leguminous Plants as Organic Fertilizer in California Agriculture.
256. The Control of Wild Morning Glory.
257. The Small-Seeded Horse Bean.
258. Thinning Deciduous Fruits.
259. Pear By-products.
260. A Selected List of References Relating to Irrigation in California.
261. Sewing Grain Sacks.
263. Tomato Production in California.

[1] This experiment was suggested by Mr. M. B. Pratt, Deputy State Forester. Through his coöperation, all box material was furnished by the Swayne Lumber Company of Oroville and the Capitol Box Factory of Sacramento.

[2] This scoring was done by T. J. Harris, San Francisco Dairy Produce Exchange, S. L. Denning, Oakland, and G. D. Turnbow, College of Agriculture, University of California.