237 



side temperature at 6 a. m. was 36.2°. These results are iu the same di- 

 rection as those obtained at the Massachusetts Hatch Station.* 



The following statements are taken from a summary given in the bul- 

 letin : 



In the construction of forcing-houses for comiuercial purposes, we believe that the 

 best results will be secured if the walls are builtof grout (cement, sand, and cobble- 

 stones) below the surface of the outside soil, with the portion above the grading of 

 wood, with from two to four thicknessesof boards, two of building paper, and an air 

 space. If properly built, however, a wall entirely of grout will jirove almost inde- 

 structible. 



We should build the roof of permanent sash bars, and use glass at least 12 inches 

 wide. The butting of the glass hasgiveaus entire satisfaction. The new method of 

 glazing, in which a strip of wood is laid over the joints and held down by uails or 

 screws, will make a tight roof. 



Also, the tests thus far made indicate that hot-water heating is both more economical 

 and more satisfactory than steam heating for small greenhouses. * * » 'j;ij(j ^^q 

 of small wrought-iron pipes from li to 2 inches in diameter, according to the size of 

 the house (a smaller size even might be preferable for the returns in a small house), 

 will be found desirable. For most purposes the combined overhead and uuder-bench 

 system seems better than to have all the pipes either overhead or under the benches. 

 We have not made a test of overhead piping, but for houses for forcing cucumbers, 

 etc., this system has given general satisfaction. 



As the houses were built for experimental purposes, we shall be glad to utilize 

 them in testing any new methods of glazing, or glazing materials. They also afford 

 an opportunity of testing ventilating and other greenhouse machinery, heaters, 

 methods of piping, etc. 



Michigan Station, Bulletin No. 64, July, 1890 (pp. 11). 



Fertilizer analyses, R. C. Kedzie, M. D.— Analyses of forty- 

 three commercial fertilizers, including six samples of bone, made iu 

 connection with the Michigan fertilizer inspection. 



Minnesota Station, Bulletin No. 12, July, 1890 (pp. 16). 



Meadows and pastures in Minnesota, W. M. Hays, B. S. A. 

 (pp. 119-124). — A summary of the results of observations made, and ex- 

 perience gained or confirmed at this station, with reference to the 

 grasses and clovers best adapted to Minnesota, is published in this ar- 

 ticle as furnishing a fair basis for practice by farmers, and for further 

 study by the station. A large quantitj^ of seeds have been ordered 

 from Russia for the experiments in this line. 



We can not long depend upon our native grasses, as they do not thrive under cul- 

 tivation, and none of the better of these wild varieties can bo easily or cheaply seeded. 



Rotation of crops; stock raising; a plentiful use of barn-yard manures; occasional 

 crops, as of grain, for sale ; good tillage and drainage ; frequent seeding down to grass: 

 in a word, diversified farming, must ere long t.ake the place of continuous wheat 

 cropping in Minnesota. 



While permanent pastures are not best on rich tillable land in this climate, they 



* Massachusetts Hatch Station, HuIletiusNos. 4 and 8 ; Experiment Station Record, 

 Vol. I, p. 82, and Vol. II, p. 104. 



