160 



PROCEEDINGS OF 



[Feb. 



The following is a general summary of the results : 



Mean Westerly Declination at Washington City. 



The maxima of the declination and temperature, for each of the months, except 

 September, occur at the same hour, viz : 20hrs., Gottingen, (2hrs. 13" P. M., Wash- 

 ington,) but in that month, while the ma.ximum declination was observed two hours 

 earlier, that of the temperature was two hours later. Lieut. Gilliss stated, that this 

 result did not arise from a single observation, which masked the regular period, 

 but was actually the case on more than half the days of the month. 



The minimum declination, e.\ccpt for December, falls at 14hr.'!., Gottingen; in 

 December, at 4hrs. That of the temperature, except for December, at lOhrs., and 

 in that month two hours earlier. 



The maximum prcs.suro of the barometer, except in August, is nt IGhrs., and in 

 that montii, at Hlir.s. The minima occur at different hours in all the months. 



Mr. Townsend, from the committee appointed to examine Mr. 

 Casielnau's collections, reported, that ihey found the collection 

 enclosed in four large wooden boxes, marked 2, i, 5, 6, rcspec- 



