being very much larger than the earth, a m , 
proportioned diameter need not be adhered, 
"'deed, his apparent diameter may answer -i , 
b ™"! his »‘PP C >; limb d, ' a ' v a right line obliquely 
\vi ! lhe s .] ,heres or c, rclcs, as far down hs ft 
, h Ip. touching the outline or the inner sphere 
ts Passage; and from the lower limb of the 
sun draw another right line, obliquely crossing 
»c other two lines or rays, and terminating on the 
concave, as close under the edge or termination 
the vn IV ° SUC segment,as practicable, touching 
the del , C . ,T " ly ?* SUCl ’ 5c S'n«u on its passage. All 
tiie two I C . C . i° col| cave latitude between where 
tr of the C la '* n bncs term ^ nalc on the concavi- 
ouitcim 11S i t S ? hei ’ e » wiU be H S htcd b >' sun-shine, 
space of pv-! o° s . u PP° secl sphere, once in the 
... q nv ■ ' U - v hours, lor an indefinite period 
field o f 3 CI | P ° Int ' Refraclion ' vi!I extend this 
be 1"J, hln f SCVeral dc S rc <» st iil lower down 
lielii m ] ' C SP lei ' eS ; and one s P l ^re reflecting 
oil o n 1 ° thC1 ' 5 ° at "cording to the am 
5 .^ce, \vill 5 l find reason to conclude, 
cause abundance of day-light, or twilight, to cx 
tend within (independent of its progression byre 
haction) to, and even beyond the internal equa¬ 
tor. I o evidence which right lines may be driwn 
ob^quely h om side to side, between the spheres 
in accordance with the angle of incidence, to 
she w the progression of the rays by reflection. 
A small hole through a window shutter admits 
lai ge space ol sunshine on tho opposite will I 
thence conclude that the N. polar opening)‘th 
mated at about 1000 miles in diameter—alfhouo-h 
I now find reason to believe it much wider^ 
sufficiently wide; to admit a space of sunshine that 
would extend within the spheres from side to side 
al La ? ‘ e^tator; provided the sun was 
su hie lent iy lngh,& provided an inner sphere would 
not, many degree, intercept the progress of is 
lays across towards tlie concave equator of an out 
2000 mile- inT th po!ar °P enin S> be "‘S probably 
In accordance with this, and my general theory 
of hollow planets, (first declared or, the W h V. 
pril, 1818,) there must of necessity be relatively 
three summers and three winters, each year „ 
under the polar verges in the concave, L l’ have 
^leidy muitonai in my no { e on the Jocal 
er Oi Ohto, and my remarks on her staple pro.' 
theUyof threat™i!7ouh[ fZnt ^ 
’ V 0lll « I satisfy them tii a t the 
