248 
POPULAR SCIENCE REVIEW. 
1867. A letter from the late Professor Phillips to Messrs* 
Longmans, dissuading them from taking the risk of such a work,, 
and my inability at the time to incur the expense of it myself, 
caused me to give up the idea. Later a pressure of many other 
engagements has interfered with my intended resumption of the 
scheme. But it was the circumstance that I had such a work 
at that time in preparation,* which led me to add names to my 
chart of Mars ; because in the accounts which I should have had 
to give of the various features of the planet, names would have 
been convenient if not absolutely necessary. The rule which I 
adopted in the selection of names was simply to assign to the 
chief features of the planet the names of observers who had 
detected such features ; to features next in importance the 
names of observers who had extended, but not in equal degree, 
our knowledge of the planet’s surface ; and to minor features 
the names of those who had advanced our knowledge of the 
theory of the planet. This was done simply for convenience* 
Some principles had to be adopted, and the above seemed as 
good as any which occurred to me. There was no idea of recog- 
nition of the labours of the various observers or mathemati- 
cians in question. It has always seemed to me that such ideas 
are absurd, and almost childish. As the chart was almost 
entirely formed from drawings by Dawes (though I studied 
many others), and as he expressed a wish that his name might 
be given to certain minor features which he alone had observed, 
as Dawes Forked Bay, Dawes Snow Island, Dawes Strait (which 
last, however, has been seen, I have since found, by Lehardelav, 
Secchi, and others) his name appears several times in the chart. 
Other names appear more than once. This I now think a mis- 
take, and propose to correct, taking counsel to that end with 
Dr. Terby, and others who have recently endeavoured indepen- 
dently to advance Areography. 
But, in the meantime, M. Flammarion, who has not advanced 
our knowledge of Mars by observation or calculation, or has at 
least published no account of work to that end, has formed 
what he calls a new chart of the planet, which is, in point of 
fact, simply my own chart changed according to Dr. Terby’s 
suggestions of what may have to be done in this way. In this 
new chart, the nomenclature is entirely altered. “ The principle 
of 6 recognition ’ or of ‘ homage ’to the great men who &c. &c.” is 
taken as the basis of the new nomenclature. Those who have en- 
abled us by their observations to chart the planet are relegated to 
small bays and peninsulas, while to those who have advanced 
* I hope to be able shortly to carry out that purpose, and probably the 
work will not suffer by the delay. 
