874 EXPERIMENT STATION KECOHD, 



A MCI (11(1 report is <;iven of cooperative tree planting carrieil out in l.Si«>-7, the rate 

 (if growth of the different trees being shown. The species in this experiment were 

 aspens, red i-edars, and varions pines. 



Planting trees for posts, fuel, and wind-breaks, (). M. Mokkis {Okldkonia 

 Stii. Jlid. GO, jqi. I'J, Jiijx. <>). — Directions are given for the collection of seed, propa- 

 gation and care of seedlings, cultivation in the nursery, preparation of the land, and 

 transi)lanting of trees for the different i)urposes indicated in the title. The first tree 

 I)lanting made at the station was begun in 1898. A brief actcount is given of the dif- 

 ferent species of trees planted, and a report is made of those still living in December, 

 1903. The adaptability of a number of species for planting in Oklahoma is described, 

 including the An)erican white ash, box elder, catalpa, white elm, hackberry, black 

 locust, honey locust, soft maple, Osage orange, Russian mulberry, sycamore, and 

 lilack walnut. 



The measurement of saw log's, A. L. Daniels ( Vermont Stn. Bui. lOJ, pp. 3-5-40, 

 cliaii.'i ^) . — The author gives a formula for determining the actual number of l)oard 

 feet in the average log, and compares the results olitained by this system of measure- 

 ment with the log rules in common use. There seems to be good reason for believ- 

 ing that this rule, which is designated as the "Universal log rule," offers distinct 

 advantages over any of the others now in use. 



Some of the sources of error of other rules are pointed out and comparisons made 

 between the estimated contents of the log and the actual amount as shown by the 

 sawed lumber. The universal rule, which can be used for logs of any size, is as fol- 

 lows: From five-eighths of the diameter in inches subtract 2 and nmltiply by the 

 diameter. The error in this rule, so far as tested, is only about 1 part in 200. 



SEEDS— WEEDS. 



Clover and alfalfa seeds, A. D. Selby and J. F. Hicks { Ohio Sta. Bui. 14^, pp. 

 111-130, ph. 4) • — The results of examination of 28 samples of red clover seed, 15 of 

 alfalfa, 6 of alsike clover, and 3 of crimson clover. Attention is called to certain 

 impurities which were found in many of the samples, the presence of dodder in red 

 clover and alfalfa being especially commented upon. 



The detailed results of the examinations of the different lots are given in tabular 

 form, and the presence of foreign seeds in the different samples is indicated. The 

 vitality tests showed that the seed for the most part was of fairly good quality, but 

 wide differences were noted between soil tests and those conducted in a seed-testing 

 apparatus. In order to remove the danger from the introduction of dodder, the 

 authors recommend that no alfalfa seed be sown until it has been thoroughly screened 

 through a sieve of 20 meshes to the inch to remove the dodder seeds. 



Some weeds of Iowa, L. H. Pammel {Iowa Sta. Bui. 70, jrp. 295-545, figs. 169). — 

 This is a more technical and expanded edition than the popular edition previously 

 noted (E. S. R., 15, p. 372). The information regarding the different weeds is given 

 in greater detail, and comprehensive accounts are included of the distribution and 

 migration of weeds, and the means of dissemination of plants. A number of poison- 

 ous plants are described at length, particular attention being jjaid to poisoning from 

 cowbane {C'lcata maculata). The effect of weeds on crops, their duration, and the 

 different species of weeds which are associated with different crops are discussed. 



"Weeds used in medicine, Alice Henkel {U. S. Dept. Agr., Farmers^ Bui. 188, 

 pp. 45, figs. 31). — A popular bulletin describing the methods of collecting and curing 

 drugs, roots, barks, etc., and giving suggestions for their disposal. A number of 

 spe(;ies of plants which occur more or less as weeds are described, and their utiliza- 

 tion by prei)aring them for the drug trade is suggested. 



Weed prevention experiments, J. A. Voelcker {Jour. Roij. Agr. Soc. England, 

 63 {1902), pp. 359-361). — A report is given of experiments carried on for theeradica- 



