( litt) 
from his boyhood, and thus the naming of them caused him 
neither trouble nor difficulty. 
Guenée’s great work on the ‘‘ Noctuélites” of the whole 
world, in three volumes, 8vo, appeared in 1852, forming part of 
the ‘‘ Suites a Buffon”’ series, and being a portion of the ‘‘ Species 
general des Lépidoptéres, par MM. Boisduval & Guenée.”” This 
work is so well known to most entomologists that it is unnecessary 
to enlarge upon it here. Two years later there appeared another 
volume of the same series from the pen of A. Guenée, treating of 
the ‘‘ Deltoides et Pyralites,” the Geometrina being reserved for 
a later period. 
It was this delay in the appearance of his volume on the 
‘“Phalénites’ which first led to my being thrown into a somewhat 
intimate relationship with Achille Guenée, which happened in 
this way :—The last number of the first volume of ‘A Manual of 
British Butterflies and Moths’ appeared April Ist, 1857: in this 
volume the Noctue@ were concluded, and the Geometre were to 
commence with the next volume. Throughout the Noctue I had 
followed the arrangement of Guenée, and I wished to have his 
arrangement of the Geometre, that I might follow it also; and it 
therefore became necessary to defer for a time the commencement 
of vol. ii. of the ‘ Manual,’ in order to allow of the appearance of 
Guenée’s volumes on the ‘“ Phalénites.’ 
In 1856, on the occasion of my second visit to Paris, I had 
_ contemplated going to Chateaudun to see Monsieur Guenée, but 
on writing to him found that he was then at Chartres, where he 
generally spent the winter months; now Chartres being on the 
railway was far more accessible, and I had no difficulty in 
spending several hours with him at Chartres, and returning to 
Paris the same evening: consequently when, in April, 1857, at 
the commencement of the interregnum between the two volumes 
of the ‘Manual,’ I found myself again in Paris, I proposed to 
Guenée to revisit Chartres, as I was extremely desirous of 
learning, if I could, somewhat of his proposed arrangement of 
the Geometre. . 
At that very moment Achille Guenée and his family were on 
the point of starting for their summer residence at Chateaudun, 
but the hospitable entomologist had no notion of losing my visit 
on that account, though from Chartres to Chateaudun there was 
then no communication by railway; a diligence met certain trains, 
I 
