462 



SCIENCE. 



[Vol. II., No. 35. 



TABLE VI.— Tempebature, 



that will easil3- absorb beat, and as easily give 

 it off. Furthermore, there is but little verdure 

 or shade, — another condition, too, which will 

 favor both absorption and radiation of heat. 

 In consequence of these conditions, the soil 

 and air are, on the one hand, rapidly heated 

 in the morning, and they are equally rapidly 

 «ooled at night. The nights are alwaj-s cool 

 in Colorado, — a condition that renders the 

 ■summer months enjoyable and invigorating. 

 But the question, after all, is, whether this 

 diurnal change of temperature is injurious to 

 Colorado as a resort' for invalids. We claim 

 that it is not, and for this reason : it makes 

 but little difference to the invalid how cold the 

 nights are, for at that time he should be in- 

 doors, where he can regulate the temperature ; 

 but it is of importance that it should be warm 

 at mid-day, so that he can take his exercise 

 regiilarlj' and comfortablj'. We have seen, 

 that so far as conditions of sunshine, humid- 

 it}', and rain and snow fall are concerned, 

 the invalid can lead an out-of-door life a 

 greater percentage of the time in Colorado 



than anywhere else in this country ; and we 

 claim that he will never find these factors 

 counterbalanced by the element of tempera- 

 ture. An experience of several years war- 

 rants the writer in asserting that an invalid 

 can, with perfect comfort and safetj', spend 

 several hours in the saddle nearlj- every day 

 of the three hundred and sixty-five. One has 

 but to read ' H. H.'s' writings to learn how 

 attractive out-of-door life is in Colorado, even 

 in mid-winter ; and we can positively assert 

 that we have known of picnics being held 

 daj' after day, in the open air, in the very 

 heart of the winter, and that there are days 

 and weeks in mid-winter when one can sit 

 with doors and windows open. 



As proof of what we say, we append the 

 mid-da}- temperature at Denver for each month 

 of the j-ear for three years. 



In conclusion, the writer would state, that 

 while his personal experience in regard to a 

 desirable climate for the cure of phthisis has 

 been such as to convince him of the great 

 superiorit}' of the cUmate of the Rock}' Moun- 



TABLE VII. — Denter, mean monthly temperature, 1p.m. 



