Mt. Rose Weather Observatory. 179 



four to forty-eight hours in advance of the appearance 

 of the frost on the floor of the State, providing the 

 weather current is traveling in its normal course eastward 

 from the coast. The data thus obtained have been ac- 

 cepted at McGill University, Montreal, to confirm similar 

 observations made since 1903 simultaneously, by means 

 of a cable, on Mt. Royal and at the McGill College 

 Meteorological Observatory, 620 feet below. 



Second only in importance to the first is the discovery 

 and photographic recording of abundant evidence of the 

 value of timber high up on the mountains, and especially 

 on the lips of cafions, for holding the snow in check and 

 preserving it in cold storage, so to speak, until late in 

 the season. 



Third, a systematic collection of data on mountain 

 climatologyf was begun preliminary to a study of plant 

 environment by Dr. P. Beveridge Kennedy, botanist and 

 horticulturist of the Nevada Agricultural Experiment 

 Station, who has been making a botanical survey of the 

 mountain with the rich reward of ten or more new species 

 of alpine flora. J If the wild currant (Ribes Churchii) 

 recently discovered, whose ripe fruit has been observed 

 to withstand a temperature of 20° F. without injury, 

 can be crossed with the domestic currant, this purely 

 scientific phase of the work will have a distinctly practical 

 result. 



But perhaps quite as important from the point of view 

 of obtaining summit temperatures in winter, as Professor 

 McAdie desires, was the success of the thermometer shel- 

 ter in automatically clearing itself of snow, even after 

 the wildest blizzards. Through the slat bottom and sides 



* Monthly Weather Review (U. S.), November, 1906, Vol. XXXIV., 

 No. II, pp. 505-510: "Records of the Difference of Temperature between 

 Mt. Roj'al and McGill College Observatory, and a Method of Local Tem- 

 perature Forecasting," by C. H. McLeod and H. T. Barnes. 



t A portion of this record will appear in an early number of Appalachia: 

 "Summit Temperatures in Winter in the Sierra Nevada" (with their rela- 

 tion to winter mountaineering), by the writer. 



% Muhlenbergia, Vol. III., No. 2, February, 1907, pp. 17-32: "Botanical 

 Features around Reno," by P. Beveridge Kennedy. 



