JEaft, itniuft lieeds^be preft Weftwards, and make that 
continual Brije {torn Eaft to Weft between t\\QTropicJ^,K% 
to the lecond^the fame accounts bear, that on this fide the 
Tropic\ about 28 or 30 degrees there are to be found con- 
ftant Wefterly winds,and therefore the Spanijh fleets from 
the Weft Indies do not return the way they went.but thofe 
both from Teru and Spain fail along the Coaft North- 
ward till they touch ^X. Havana in Cuba^ and being joyn'd 
together there^they feek their height without the Tro" 
picks, where prefently they find Wefterly winds which 
ferve them till they come in view of t\\Q^:{ores, and from 
thence to SevtU. In like manner in the South Sea thofe 
which return £rom thtPhilippines or China toMexico,to the 
end they may recover the Weflern winds , mount a 
great height till they come right againft the IJlands oija- 
pan^and difcovering Caliphornia, they return by the Coaft 
of new Spain to iht ^ovtoi Ac apulcoy from whence they 
parted. So that tho' they fail eafilyfrom Eaft to Weft 
in both Seas within the TropicJ^s, for that the Eaftera 
winds reign there s yet returning from Weft to Eaft 
they muft feek the Weftern winds without the Tropicks 
in the height of 27 degrees. 
Now thereafon of thisfeems to me clearly deducible 
from the former J for the prefTure of the Air between the 
Tropicks being continua-lly lefs than the neighbouring 
parts of the Atmosphere, and fo confequently by them 
preffed Weftward, way being thereby given to the 
neighbouring Air for fome degrees without the Tropic l^^ 
its motion from Weft to Eaft is proportionably encreaft 
beyond that uniform motion it would have if the whole 
Atmofphere^tVQ of an equall preffure, and confequent- 
ly there will blow a conftant wind from Weft to Eaft 
for fome degrees beyond the Tropicks. 
The third thing I have had occafion to obferve is, that 
by what I can colled from the accounts of Eaftern Voya- 
ges, thole Eafterly winds between the Troptchs do not 
blow 
/ 
