12 Kansas Academy of Science. 



entine 96°, Huron, Dak., 94°, Bismarck 90°, Fort Sully 98°, Rapid City 92°, and Fort 

 Custer 90°. An area of lower barometer has developed in the mountain regions of 

 Idaho, Montana, and Wyoming, or has advanced from the west and is now central 

 in that region, drawing the wind from the south across Kansas and Nebraska at 

 from 10 to 24 miles per hour. During this afternoon occurred some hot winds in 

 the western counties of our State. In Morton, Stevens, Grant and Stanton the 

 temperature reached 99°, in Trego and Gove 100°, and in Thomas 102°. At North 

 Platte, Neb., it reached 102°, and at Valentine 106°. 



On the morning of July 6th this area of low pressure has moved southeastward, 

 and is now central in the northwestern part of Nebraska and southwestern part of 

 Dakota. This being Saturday, no afternoon map was issued. The 7th being Sun- 

 day, no morning map was issued, but the afternoon map shows the low pressure 

 divided, a part being central in northwestern Iowa, and the other over the Panhandle 

 of Texas, while the general current of the wind over Kansas is from the southeast. 

 The maximum temperatures of this day were lower in Nebraska than in Kansas. 

 At Dodge City it was 94°, at Gibson 105°, at Lisbon (Gove county) 100°, at Offerle 

 (Edwards county) 98°, at Englewood 97°, at Hugoton 97°, and at Colby 98°. The 

 general current of the wind over Kansas was changed to east and northeast, respond- 

 ing to an area of low pressure over the Panhandle and New Mexico. 



The rain of the 8th, and the high pressure following, materially lowered the 

 temperature for the next few days. 



An extensive area of low pressure in the mountain regions on and after the morn- 

 ing of the 12th, kept our winds southerly until the night of the 17th-18th, the maxi- 

 mum temperatures of the 17th, being the maximum for this hot wave, were a& 

 follows: North Platte 100°, Colby, Kansas, 103°, Lisbon 108°, Gibson 114°, Dodge 

 City 100°, Offerle 103°, Hugoton 100°, Englewood 101.5°, Fort Elliott, in the Pan- 

 handle, 102°, Fort Sill, Indian Territory, 96°, and El Paso, Texas, 100°. 



But as this paper is only preliminary to a fuller discussion of this subject at our 

 next annual meeting, its object at this time being to show the line and method of 

 research, its purpose is deemed fulfilled. 



SOME TESTS OF CEMENTS MANUFACTURED IN KANSAS. 



BY E. C. MURPHY, STATE UNIVERSITY, LAWRENCE. 



The tests which form the basis of this paper were made by the writer at the State 

 University during the month of July, 1889. 



It was the writer's intention to test all the cements manufactured in Kansas. 

 Cement is reported as having been manufactured at Fort Scott, Kansas City, Man- 

 hattan, Alma, and Topeka. Only those manufactured at Fort Scott and Kansas City 

 could be found in the market at this time, and hence they are the only ones tested. 



In order to get the relative value of these two cements, and their value compared 

 with a standard cement, I have tested with them, under the same conditions, a German 

 Portland cement. 



Much care has been taken to have the conditions under which the tests were 

 made, the same for each cement. To this end the following method of testing was 

 used: The water used in mixing the cement, as well as that in which the specimens 

 were placed, was left in the testing-room (one of the large rooms of the main Uni- 

 versity building) for 24 hours before using, in order to have a uniform temperature. 

 A bricket of each cement was then mixed to as nearly as possible the same degree 

 of plasticity; the mold in which the bricket was made was tilled, placed on a marble 



