206 Report of the Voyage of Discovery 
During this voyage, of thirty-one months and thirteen days, 
the Coquille sailed 25,000 leagues. She came to the place of 
her departure without having lost one man, without illness, and 
without damage. M. Duperrey attributes for the most part 
the good health which his crew constantly enjoyed, to the 
excellent quality of the water preserved in the iron tanks, and 
also to the order which he had given that it should be used at 
pleasure. As to the good fortune which the Coquille had, to 
execute so long a voyage without damage either in its masts, 
its yards, or even in its sails, if it should be attributed to a con- 
currence of extraordinary circumstances which it would be 
imprudent always to expect, it should also be remarked that | 
such chances only offer themselves to the best seamen. We may 
also add, that M. Duperrey and his fellow-labourers had had, 
in 1822, the advantage of finding at Toulon, M. Lefébure de 
Cerizy, an engineer of the greatest merit, who presided at the 
repair and outfitting of the corvette with all the solicitude-of 
a true friend. 
Maps and Plans taken during the Voyage of the Coquille. 
The hydrographic works executed during the cireumnaviga- 
tion of the Coquille are already completely drawn, and only wait 
the hand of the engraver: they form 53 maps or plans, pre- 
pared in the best manner. We shall give in this place an 
enumeration, reciting the names of the officers to whom we 
are respectively indebted for them. 
The plan of the islets of Martin Vaz and of the Trinity, on 
the coast of Brazil, has been executed with much care by M. 
Berard. 
On the coast of Peru the same officer made a very detailed 
plan of the anchorage of Payta and a map of the adjacent 
coasts, from Colan, situated at a small distance from the mouth 
of the Rio de Chira, as far as the isle of Lobos. 
The general map of the Dangerous archipelago has been 
executed by M. Duperrey himself; the particular map of the 
isle Clermont-Tonnerre belongs to M. Berard; the plans of 
the isles of Augier, Freycinet, and of Lostange have been made 
with much care by M. Lottin. 
M. Duperrey has profited by his navigation among the So- 
ciety Islands to rectify several serious errors which are re- 
marked in all the maps of this archipelago. 
M. Berard has taken, in the island of Otaheite, with his ac- 
customed skill, the plan of the anchorage of Matavai. The 
plan of the isles of Moutou-iti and Moupiti, and that of the 
anchorage of Papoa, are by M. Blosseville: they do equal ho- 
nour to his zeal and his experience. 
In 
