( J®0 ) 
Fefult of a Cryllallizaticn quite different from the 
former. 
i had almoft forgot to tell you, that I faw but very 
few Figures of twelve Points, andthofe moftly iinper- 
fed in one refped or other. 
Petmrth^ Feb,i^^ 
urn faB^e, Lennae Regis in NorfoJcia* Ex 
epijlola Obferyatoris ad Marcinum 
Folkes, Arm. Soc, Vtce-F^rdf. 
ON ingratum fore arbitror, Vir Dodillime, obfer- 
vationes quafdam de Aurora Boreali, apud Len- 
nam Regis in Norfolcia, quatuor fuperioribus annis a 
me habitas tibi impertire. Miruin illud Ph^enomenon 
fexto Martii 171I. non iicuit mihi infcicnti videre, quod 
infortunium baud exiguum in me peperit ftudium 
fubfequentibus Phaenomenis invigilandi, Priorem ob- 
- fervationem, quam hie fubjeci, fumma cura delinea- 
vi, ftatim atque vidi, ideoque, ni fallor, a vero parum 
diicrepat. Reliquas etiam deferiptiones pro certo 
habeas accuratas elfe. Qusnam fit caufa harum coru- 
fcationum, nondum, ut opinor, fatis exploratum efl. 
Die Veneris Sept. 5. 1718. circa hor. x. Phasnome- 
non hoc, delineatum PI, I. Fig, 4. obfervatum fuit Len- 
n^e Regis, in pundo boreali. 
Die 
