70 
METEOROLOGY OF 1 897. 
C. Mulder, now of the senior class in the Agricultural Col- 
lege. who was employed as draughtsman during the 
summer. 
The figures illustrating the instruments referred to 
have been obtained from the manufacturers, the names 
attached showing the source. Those of the French 
firm of Richard Freres, were copied from their catalogue. 
Figure 8 is from the firm of W. and L. F. Gurley, of Tro}L 
N. Y. The figure of the statoscope record is due to the 
courtes;, of the Engineering News Pub. Co., N. Y., the figure 
being made from records taken here. 
TABLE OF CONTENTS. 
Section's. 
Great variation of Colorado climate d 
Characteristics of Colorado climate 4 
Description of the Stations — 
I'ort Collins 5 
Cheyenne Wells G 
Rocky Ford 7 
Description of the Instruments — 
Normal Standard Thermometer 8 
Maximum and Minimum Thermometers 9 
Wet and Dry Bulb Thermometers 10 
Thermograph 11 
Registering Pschyrometer 12 
Barometer 13 
Barograph 14 
Statoscope 15-18 
Maximum Radiation T'hermomtter 19 
Arago-Davy Actinometer. 
Terrestrial Radiation Thermometers 20 
Hook Gage 21 
Kvaporometer 22 
Soil Thermometers 23 
Sunshine Recorder 24 
Explanation of Table 1- 4 - 
Wet and dry bulb temperatures 25 
Dew Points and Relative Humidities 2G-27 
Maximum and Minimum Temperatures 28 
(•'ange of Temperature 29 
Barometer Readings 30 
Terrestrial Radiation 31 
Terrestrial Radiation and Frost 32 
Precipitation .33 
Wind Velocities .34 
Solar Radiation 35 
Calories .36 
Energv rer*eived from sun .37 
Frost and Dew .39 
Precipitation 40 
Remarks on Precip tation diagram 41 
Number of stormy days 42 
Explanation of 'I'emperature diagram 14 46 
Diagram of monthly baronifter 47 
Observations at the sub-stations 48 
Change in average temperature with elevation 50 
Inversions of temperature at the high stations 51 
Connection with cold waves 52 
