The following list comprises the instruments now in use; — 



One mercurial barometer 



One standard thermometer 



One maximum ,, 



One minimum „ 



One hygrometer (wet and dry bulb) 



One Beckley's recording Anemograph 



One Robinson's Anemometer 



One Rain gauge (Glaisher's pattern) 

 All of these are from Negretti and Zambra, London, except the Robinson's 

 Anemometer which is French and registers in kilometres. Most of tbese instru- 

 ments are found to l>e satisfactory in their performance. 



The thermometers and hygrometer are mounted in. or rather from, the 

 North window of the second floor. They are protected from undue exposure in 

 the ordinary manner and are separated from the observing room by glass doors 

 which are opened for observation. The maximum tbermometer is Negretti and 

 Zambra's model and the minimum is Rutherford 'p. The barometer is mounted 

 upon the wall of the room above mentioned, the mercury in its cistern being at 

 an elevation of 84 feet above the level of the sea. In this room is also the clock- 

 work and recording apparatus belonging to the anemograph which is mounted 

 upon the roof immediately above. The anemometer is also mounted upon the 

 roof at a distance of about ten or twelve feet from the anemograph. The 

 anemometer is not self recording. 



The rain Eräuge is planted in the around about 30 feet from the buildinsr, 

 its upper edge being about four or five inches above the level of the ground. 



THE OBSERVATIONS. 



The observations, thus far, have been made at the hours of 7 A.M. 2 P.M. 

 and 10 P.M. local time. This last hour is almost identical with the time of the 

 "international'' observation 7-35 A.M. Washington mean time. It will 

 doubtless be desirable to increase the number of these observations to at least 

 live or six during the day as soon as more complete arrangements are made. It 

 is also intended to undertake a series of hourly observations during some months 

 of the present year for the purpose of determining as nearly as possible the 

 corrections necessary for the "daily means." The Directors of the University 

 have recently appointed Mr. Namba as observer, Mr. Wuyeno remaining, and 

 this addition to the force, will make several improvements possible. 



The observations arc all recorded, as made, upon suitably prepared blanks, 

 and all reductions and corrections are made afterwards. From these records the 

 following tables have been compiled and the accompanying charts are based upon 

 these tables or upon other similar ones. The tables give accurately the results 



