102 ASSOCIATIONS AND MIGRATIONS 
at Annamaboo, onthe Guinea Coast, after a tornado. 
The wind veered to the northward, and blew fresh 
from the land, with thick mist, which brought off 
from the shore so many of these insects, that for one 
hour the atmosphere was so filled with them, as to 
represent a snow storm driving past the vessel at a 
rapid rate, which was lying at anchor about two 
miles from the shore.” 
In the Journal de Rouen, we are informed that 
several persons testified, they had witnessed, at Sotte- 
villes-les-Rouen, a rain of white butterflies, which 
fell in abundance towards the close of the day. This, 
no doubt, proceeded from one of these flights, and 
the insects, in all probability, becoming paralyzed, 
from mounting too high in the atmosphere. 
An extensive migration, but somewhat different, 
was noticed in one of the Cantons of Switzerland. 
Madame de Meuran Wolff, andher family, who were 
residing at Grandson, on the Lake of Neufehatel, one 
day noticed, in the garden, an immense flight of 
butterflies, of the species called Painted Lady, pro. 
ceeding with great rapidity. They flew closetogether, 
in the same direction, from south to north: and, 
although repeatedly approached, they exhibited no 
signs of fear, nor were they diverted from their 
straightforward course. This extraordinary flight 
consisted of a column of from ten to fifteen feet in 
breadth, and continued, without interruption, for 
upwards of two hours. Although the garden was 
