W. A. Norton on Molecular Physies. 6 
W.H. Palmer. 0.J.Dockstader. EE. A, Palmer. 
From 12" to 13, 18 11 9 
me 30 23 23 
Total, 114 
The morning was as clear as could be desired, and the meteors 
were unusually large and brilliant. Many of them left trains. 
On the next morning, in the hour between 1 and 2 o'clock, 
Mr. W. H. Palm w 16, and Mr. H. P. Borden saw 28. 
About half of them seemed to radiate from Leo. 
of these were conformable to the radiant in Leo. the next 
morning the number per hour if judged by the Cleveland ob- 
servations between two and three o'clock w for three 
observers, which is equivalent to about 80 for a single observer. 
€ two hours give an average of about 238 per hour for one 
erson. Not more than half, according to Mr. Marsh, radiated 
rom Leo. | 
On the next morning the average number seen by each of 
the twelve observers at New Haven during the three hours after 
midnight was 13 per hour. Probably less than one-fifth of these 
belonged to the November group. : 
It would seem then that we were nearer the node of the orbit 
of the bodies on Monday morning than on Tuesday morning, 
and that on Wednesday morning we had passed nearly if not 
quite through the group. H. A. N. 
Arr. XI—On Molecular Physics; by Prof. W. A. Norton, 
[Continued from vol. xl, p. 73.] . 
Terrestrial Magnetism.—In accordance with the ideas already 
advanced as to the essential nature of electrical excitation (p. 249) 
ve may conceive that the earth may derive its magnetic condi- 
tion from currents developed in its crust by the impulsive action 
of the ether of space upon the molecular atmospheres.’ Both the 
* As intimated in a former part of this memoir, the priority in the publication of 
the g theory that the earth derives its magnetic condition from its 
With the ether of space is conceded to Professor Hinrichs, of the Towa State Uni- 
Yersity, and formerly of Coy But the idea was no less an original one with 
hi ture 
restrial Magnetism, prosecuted, at intervals, through a period of about 
ears; and a natural offshoot from the theory of Molecular Physics pro- 
