Sierra Club Bulletin. 



what has been packed by cHmbers, has been confined to 

 fifty pounds of coal and one pack-horse-load of wood. 



The mercurial barometer has been installed, and a 

 portion of the ten-foot shaft designed to guard the pre- 

 cipitation-tank against freezing has been excavated. The 

 bitterness of the winter weather has, however, delayed 

 the completion of the task until the present time. A wind- 

 vane with anemometer is also awaiting erection. 



Owing to delays in the completion of the thermograph 

 and the barograph, the generous offer to Mr. S. P. Fer- 

 gusson to construct a meteorograph similar in design to 

 the one made by him for the use of Harvard University 

 on El Misti, Peru, (19,000 feet,) will probably be ac- 

 cepted. This instrument will furnish, on a single sheet, 

 parallel records of temperature, air-pressure, velocity of 

 the wind, and humidity. In this case a new shelter must 

 be constructed to contain it. 



At Professor Abbe's suggestion, an extra tank provided 

 with a T-shaped intake pipe may be installed to deter- 

 mine, not the amount of snow and rain precipitated, but 

 the amount latent in the atmosphere. A heliograph for 

 use in signaling, especially in case of distress, will be 

 added to the equipment when funds permit. 



When the improvements in equipment already planned 

 have been completed, the various problems already out- 

 lined will be further investigated. New data obtained 

 on the February trip from Mt. Rose to Lake Tahoe 

 and thence to Truckee serve only to confirm the earlier 

 observations on the value of the timber in conserving 

 the snow. 



Particular attention will be given to the problem of 

 forecasting frost and storm from the summit of Mt. Rose. 

 If a second appropriation is made, auxiliary volunteer 

 stations, equipped with thermograph, barograph, and 

 wind-gauge, will be established at Brockway (6,225 feet), 

 on State Line Point, Lake Tahoe, and at the headquarters 

 ranch (6,000 feet), on Jones's Creek, on the opposite side 

 of the mountain. The records furnished by these two sta- 



