(8*7) 
iefor^thtotttt after) it might well give occafion to think it 
was depending on the equinox. 
Moreover, the carious Reader may be pleated to compare this 
Account with that, which was given concerning the Tydes ob- 
fcrvedat Plymouth^ Numh^ p. 533. and to take notice, that 
the difference of the Day-tyde from the Night- tyde, agrees in 
both, (of which the reafon may beconfidered 5 J but, as to the 
difference of the inereafe and decreafe of the Water about Bri~ 
ftol from what Mr. Coleprefs obferved at Plymouth , that may 
much depend upon the pofition of the places -, that of Plymouth 
being out to the Sea, this near Bri(lol being on the Severn far 
within Land. 
Whilft the Reader is comparing this Information, with that 
of the lately cited N°.33.. he will meet there pag. 633. in the 
laft line j with the word perpetual, which he is denred to change 
into proportional^ which indeed fliouldhave been intimated muck 
fooner. 
E® Extrad; 
Of a Narrative^ made by an Ingeniomlnglifh Gentleman J. 
new refiding at Sev\\\ 0 concerning his Voyage from Spain 
Mexico, and of the Minerals of that kingdom* 
TO pafs by many curious Obfervations torching thzVege* 
table and Jaimal Sphere, (which I referve for another oc- 
tafionj I fliall now entertain you only with fome of the Obfcr- 
vables, I meet with about Minerals in the kingdom of Mexico 
whither I travelled A, 1664, under the Character of a Bife 
eaner y by the recommendation of a friend in the fame Ship P \ 
that carried thither a New Vice-roy of Mexico, remaining in that. 
Country almoft two years in continual ftudies and refearches^ 
dpecially about Minerals and their Generation, Separation,^. 
And indeed Nature hath fo prodigally enriched this Country 
with all forts of Minerals- 5 both perfect, imperfect and mixt that 
#ie almoft overwhelms theObfervationof the moft -diligent and 
moft curious Naturaliftsi I have dealt with the skilfulleft Mine- 
snen inthofeparts-, but I found thm to know of, and care for 
^Kuieiadie.mauetoi-Minerals^)iitCRQld and Silver ,Some. of them 
fliewU 
