988 EXPERIMENT STATION RECORD. 



p. 987). The relationship, origin, and distribution of the weed are 

 given and damage done and means of eradication are discussed. As 

 indicated in the previous report, the application of salt has proved 

 very beneficial in destroying it, and when used at the rate of 3,000 lbs. 

 per acre every ]>lant was killed. At the same time the application of 

 salt to the grass land greatly improved the growth of the grass, which 

 was a species of fescue. 



Wild garlic, L. H. Dewey ( U. S. Dept. Agr., THvision of Botany 

 Circ. !), pp. S, Jif/s. 3). — Popular notes are given on the origin and intro- 

 duction of wild garlic {Allium ritieale) into An)erica. The i)lant is fig- 

 ured and described so that it may be readily distinguished from other 

 species with which it might be confounded. The difteient forms of 

 damage caused by wild garlic are mentioned and its geographic distri- 

 bution in America shown by a map. Various methods of dissemina- 

 tion are described, such as the transportation of the bulblets with 

 wheat and rye and the underground bulbs being carried with nursery 

 stock, flower bulbs, and also through the sodding of lawns, etc. ^leth- 

 ods of eradication are suggested, many of which are more or less effi- 

 cient in reducing the abundance of the weeds, such as the rotation of 

 crops, shaving the soil near the surface as often as the green shoots 

 appear, and liberal applications of lime in pastures and meadows to 

 improve the growth of grasses and clovers. Pasturing hogs is men- 

 tioned as a possible method of keeping it in check. The application of 

 strong carbolic acid to the plants is also recommended. 



Suggestions are given of methods for preventing milk and dairy 

 products from being tainted by cattle eating the weed. 



Report on practical Tvork of the professor of biology, J. H. 

 Panton {Ontario AgJ. College and E.rptl. Farm Rpt. i.s.'/.o, pp. 12-14^ 

 pi: 1). — An investigation was undertaken to ascertain the amount of 

 water transpired by 2 common weeds, wild mustard {Brassica sinapis- 

 trum) and pigweed {Amarantus retroHexus). A representative x>laut of 

 each species was placed in pots in the garden, so that the conditions 

 might be the same as in the field. Water was applied as required, 

 and the pots weighed at regular intervals. The experiment was con- 

 tinued for 9 days, when it was terminated by unfavorable conditions. 

 The meteorological conditions and amount of transpiration per day 

 for each plant are tabulated, in which it is shown that the wild 

 mustard transpired on an average 13.98 oz. of water, and the pigweed 

 10.51 oz. Based upon this average, the author states that, allowing 

 10 mustard plants to the square yard, 21 tons of water would be 

 transpired daily from an acre of these weeds. 



The author investigated the question as to what extent a Canadian 

 thistle root wdl grow if cut into pieces. When cut into sections \h <ir 

 2 in. in length, it was seen that a vertical root will produce buds only 

 as far as the fifth cutting. 



