1884.] The Sun-spots and the Zodiacal Light . ig 
at its lowest and the brute mind at its highest ; and one of 
the most marked ways in which this difference shows itself 
is in the fadt that through the possession of language the 
lower human minds can be raised. The possession of lan- 
guage gives to the savage a potentiality of higher things 
altogether beyond the reach of the brute. The question 
whether animal intelligence could develop into human in- 
telligence — or rather has developed into human intelligence 
— depends therefore very largely on whether language could 
be, 01 rather has been, naturally developed. This question 
I am not competent to discuss ; but the principles of the 
great hypothesis of Evolution, which account for so many 
of the problems of Nature, lead me to think that most pro- 
bably it has been so developed. 
C. Lloyd Morgan. 
III. THE SUN-SPOTS AND THE ZODIACAL 
LIGHT. 
By A. H. SwiNTON. 
S HE astronomer Cassini put on record, about the year 
.^1683, that during the prevalence of the sun-spots the 
zodiacal light may be expedted during the months of 
February and Odtober. This spring, when turning over the 
leaves of the “ English Mechanic,” I observed a note to the 
effedt that an enthusiastic astronomer, whose eyes had grown 
dim in watching, had at length noticed this singular pheno- 
menon. At that time, as far as my recolledtion goes, it took 
the form of a pale bluish halo in the transparent air after 
sundown ; but it would appear as if the polarisation of the 
mellow autumnal mists have lent to it afar greater magnifi- 
cence in some parts of the world. Under date of Odtober 
26th a relative writes from the Kangra Valley, North India : 
• — “ There has been a good deal of fresh snow on the hills ; 
it has fallen early, and there is prospedt they say of a cold 
winter. The last two nights we have seen the curious 
glow — you may have read of it in the papers — in the western 
