AN INVITATION.
The New England Meteorological Society invites the assistance of members of the Agassiz Association in New England and Eastern New York, in the observation of thunder-storms during the summer months. Records are wanted of the time of the beginning of rain and of the loudest thunder for every thunderstorm in all parts of New England. More complete records, giving temperature and direction of wind are welcomed from those who will make them. Instructions and blanks will be furnished, on application to
W. M. DAVIS, Sec. N. E. M. S.,
Cambridge, Mass.