168  Noie on the Map of Mountains. 
7. Curious fact respecting Animal Povson.* 
It seems highly probable, that an infuriated serpent will 
secrete the poisonous fluid much more promptly than when 
ina placid state. And it is no doubt equally true, that 
many animals, which under ordinary circumstances are per- 
fectly innoxious, become armed with a salivous poison 
when infuriated : a truly mexplicable phenomenon. Man 
himself becomes somewhat poisonous when highly excited 
by anger. Dr. S. Brown informed me that he has had 
patients under his care, who had been bitten in personal 
combats, and whose wounds exhibited every symptom of 
poison, pertinaciously resisting the ordinary modes of cure ; 
but in these cases, the deleterious fluid is the saliva, (but it 
has been supposed that dots ane of the tartar from th 
teeth remaining in the wound, were the cause of the appar- 
ent poison,) whereas in thie serpent, as is well known, it is 
a peculiar secretion deposited in its proper recipient cavity. 
8. Map shewing the a fess ofr the principal Moun- 
ains on the Glo 
Mr. Srktince<Sir, 
as sometime since very much gratified at seeing pro- 
Se of Mr. Timothy Swan, of Boston, for publishing by 
subscription, a Mapt+ shewing the relative heights of all the 
principal mountains in the world. Having lately been in, 
Boston, I called on Mr. S. and subscribed my name. 
plate I was pleased to find nearly finished. As the work 
may not be known to many of your readers, allow me to 
ing mind, is exceedingly valuable, as it presents at one view 
we asp aaa rege geese ver of all the most cele- 
numerous, ‘eueeteine all our most sievutnt summits.— 
* This fragment should have been ficartad in Mr. Say’s memoir on her- 
petology, but was accident tally omitted. 
* The Map is about eighteen inches square. 
