DEE 
DEDUCTIONE, or Depurrionz, in the Jtalian ele 
‘the nare which Guido Aretine gave to the rife ons 
in Serongane the fyllables wt,-re, mi, fa, fol, ie ia 
deducitur vox. On the contrary, when the voice "defcende d 
by /a, fol fa, mi, re, ut, he calied it Reduttione, quia per 
has reducitur vox. 
DEDUCTIVE Evipence, in Ethics, is derived either 
from the invariable properties or relations of genera 
from the actual, though gare aps variable, 
‘filing among things. The former is called dem 
and the ‘latter moral. 
refpe€t to their fubje& with refpe& to their nature, as the 
one admits of aaa and contrariety cf proofs, which he 
‘other does not, and as the former is fimple, arifing fro 
coherent a of peek mutually and effe ntially eee 
and the latter is generally complicated, being compofed of 
‘a number of eal proofs, Campbeil’s Hift. Rhet. 
vol. 1. book i. 
DEE, J 
4 OHN a arg agen eee 
la 
In Biography, ankE 
cian, was born in London. in He received ‘he ear iy 
part of his ares at iieew ehools i in and near the metro- 
polis ; from thence he went to St. John’s college, Cambridge, 
where he applied himfelf to the ufual ftudies with much di- 
higence. In 1547 he vifited Flanders; and, on his return, 
was sat vd of al colleges and was admitted ro 
the degre is mathematics, and 
his er obfervations on ne fac eave w 
upon him the imputation of a i ae which was never af- 
terward3 obliterated. To avoid the notice which evil- 
minded perfons excited by reports equally malicious and un- 
founded, he withdrew to Louvain, where 
tor of laws’ degree. From Louvai 
read IeQures on Euclid’s Elements w ae ae 
in 1551 he returned to England, and was introduced to the 
uted for a royal prefentation to the 
reCtory of Upton- pains -Severn. In the reign of Mary, he 
was charged with pratifing enchantments againft the queen’s 
hif nd it was not till after much expence, trouble, and an 
imprifonment, that h s fet fucceeding 
lar. In 1 e went on the continent to Labbe? a work, 
entitled, * Monas Hie erogly phica,”” to the emperor Maximi- 
lian. His next work, “ Pr hy gee a Aphorittica,” he 
ry 
on 
157% again to Louvain, where 
racked ay a ae a alarming illnefs, which afforded 
the queen an opportunity of fhewing her regard and re{pect 
for him who had formerly been her inftrudtor in aftrology. 
She fent out two phyficians to attend him, and exhibited 
al ca uot apparatus, the greater 
ae of which was deftroyed by an enema mob, who 
conceived that the owner had fecret dealings with the 
devil, In the year 1572, on the fudden appearance of a 
new ftar in Caffiopeia’s chair, and again in 15779 on the ap- 
pearance of a c aie which was looked on as forebodin 
fome terrible calam tr. Dee obtained dhe? highett repu- 
tation for the aifeourtes ara he delivered explanatory of 
DEE 
ecleftial phenomena. The queen’s ill-heal-h in na sas 
a hera ahaa for fendin 
onfult fome eminent phyficians on tee 
though he a er was Saeed ona political errand, 
was next employed to w_a peographical a 
of the a ae difcovered by Enplithmen in d: ff-rent parts 
- the globe: this is ftill preferved in the Cottonian orang 
on two lee ae ofed a treatife on the ree 
formation of the 
) 
ftanding the popular clamour excited againtt 
conduét was re{peétable, and his cha rater eftim 
connected h 
n of the name eal Kelley, and they united in perfor 
i eir rin cantations, and maintaining an imaginary intercourf¢ 
want 
great diftrefs, 
nobleman into their foc 
to and, and from the 
obtain an audience with the Polith- fovereign, a 
peror Rodolph, both of whom he difgufted by ae own nfelfe 
importance, and by a parade of projects which he wes in- 
capable of realizing. Dee and Kelley feparated, and the 
latter coo ey matter of the moft valuable part of their 
ftock, by ich he was ee to eftablith his future for- 
tune, in the year 1589, a 
He petitioned for trial, in hope 
be himfelf from the fufpicions attached to his charaéter as 
a necromancer; but his prayer was not regarded, and he felt 
himfelf in old age ciel: friends, and overwhelmed in po- 
sda 1608, while he was preparing | a another 
journey to ce saan. The works of Mr. Dee were nu- 
erous; but they are now well nigh forgotten. “Soa un 
publifbed MSS. are flill preferved in th molean 
Cottonian colle&ticns, which are faid to exhibi 
proofs of the author’s erudition and oes as well a 
. aciaaay ve of vanity and fanaticifm. rit. 
RTHUR, fon of John, ear at Mortlake, 
» July rath, 1579, accompanied his father in 
his sell over France, rea ae and Poland, and was 
early initiated by him in the fam i 
himfelf had fo unfit follow ey 
land, he fettle eftminfter, intending to pra 
cine ‘there; but, cade rejected by the sai of a ay 
to whom he applied for ais ce, he went to Roffia, 
on the recommendation of king James, was penieree a 
fician to the czar, an oe ce he continued t o hold for four- 
teen year 
loft the money he had acquired in Ruflia 
grand elixir, cae reality of the nee of which he never 
do joa ed. He is faid to have died at Norwich in extreme 
verty, in Gegter arse er He fuffered the cenfures of 
= 
table a 
which he profeffed to cure fundry difeafee, 
he publifhed, in 1631, * Fafciculus chymicus, a Rrufe {cien- 
Kka tie 
