338 MAR 
the variety of forms this mineral puts on is almoft endlefs. 
There are however only three diitinft fpecies of it; one 
of a bright gold colour, another of a bright filver, and a 
third of a dead white; the filvery one feems to be pecu¬ 
liarly meant by the writers on the Materia Medica. 
Marcafite is very frequent in the mines of Corn wall, where 
the workmen call it mundic; but more in Germany, where 
they extract vitriol and fulphur from it. Hill. 
Here marcafites in various figures w-ait, 
To ripen to a true metallic ftate. Garth's Difpenjary. 
MARCASIT'ICAL, adj. Pertaining to marcafite, re- 
fembling marcafite. 
MAR'CASSIN,/ in heraldry, a young wild boar dif- 
tinguifiied by having no twill on the tail. AJh. 
MARCA'Y, a town of France, in the department of 
the Vienne : feven miles fouth of Poitiers. 
MARCEL' (St.), a town of France, in the department 
of the Ardeche; twenty four miles fouth of Privas.—A 
town of France, in the department of the Mouths of the 
Rhone; five miles eaft of Marfeilles.—A town of New 
Navarre; 130 miles fouth-weit of Cafa Grande. 
MARCELLAN 7 , a town of France, in the department 
of the Herault: five miles north-eaft of Agde. 
MARCEL'LIAN, adj. Belonging to the doctrine of 
Marcellus. 
MARCEL'LIAN,/ One of the followers of Marcellus, 
who denied the diftindl or fubftantial exiftence of the Son 
of God. 
MARCEL'LIANISM, in ecclefiaftical hiftory, the doc¬ 
trines and opinions of the Marcellians, a fe< 5 t of heretics 
towards the commencement of the third century, fo called 
from Marcellus of Ancyra, their leader, who was accufed 
of reviving the errors of Sabellius. 
It is generally fuppofed that Marcellus, bifliop of An¬ 
cyra in Galatia, was prefent at a council of Ancyra in 
314, as bifliop of that city. He was alfo at the council 
of Nice in 325, where he fignalized himfelf againft the 
Arians; and it is concluded, from the teftimony of Epi- 
phanius, that he died in 372, when he had been bifliop 
almoft fixty years, and had lived almoft or quite a century. 
Socrates fays, that, in oppofing Afterius, againft whom and 
other Arians he wrote a book in the year 334 or 335, 
Marcellus went into the other extreme, and embraced the 
opinion of Paul of Samofata, that Jefus Chrift was a mere 
man. He was depofed by an aflembly of bifhops at Con- 
Itantinoplein, 336 ; but reftored by the fynod at Sardica 
in 347. His book, which was a large work, and the only 
one he had publifhed, was anfwered by Eufebius of Cae- 
farea*; from whofe quotations and arguments, as well as 
from Marcellus’s letter and confeflion of faith, delivered to 
Julius bifliop of Rome, about the year 341, which is pre- 
lerved by Epiphanius, it appears that he received the fame 
fcriptures with otherChriliians, and paid them a like refpeft. 
Theodoret fays, that he denied a trinity of perfons. How¬ 
ever, there have been formerly, as well as lately, different 
apprehenfions concerning the real fentiments of Marcellus; 
but, according to Dr. Lardner, there is fufficient reafon to 
think, that he was a Sabellian or Unitarian. Montfaucon 
is of opinion, that not long before his death, about the 
y ear 372, he fent a deputation to Athanafius, with a con- 
feflion of his faith, completely orthodox ; but this ftory, as 
Dr. Lardner thinks, is-not well lupported. If the doctrine 
of Marcellus be carefully examined, it will appear, fays 
Moftieim, that he confidered the Son and Holy Ghoft as 
two emanations from the divine nature, which, after per¬ 
forming their refpettive offices, were to return again into 
the fubftance of the Father; and every one will perceive, 
at firft fight, how incompatible this opinion is with the 
belief of three diliinct perfons in the Godhead. Lardner, 
vol. iv. Mojheim , vol. i. 
MARCELLIN' (St.), a town of France, and principal 
place of a diltrift, in the department of the Here 5 thirty 
miles fouth-ealt of Vienne. The place contains 3,047, and 
MAR 
the canton 14,589, inhabitants, in fixteen communes.— 
A town of France, in the department of the Rhone and 
Loire : nine miles fouth-fouth-eaft of Montbrifon. 
MARCELLI'NO, a town of Naples, in Calabria Citra : 
five miles eaft Scalea. 
MARCELLI'NUS (Pope), was a native of Rome, and 
fucceeded Caius in the fee of that city in the year 296. 
He was accufed by the Donatifts of having apoftatized un- 
der the Dioclefian perlecution, when, they maintained, 
the fear of death induced him to deliver up the Scriptures 
to be burnt by the pagans, and to offer incenfe to the gods. 
On the other hand, the innocence of Marcellinus was 
ably defended by St. Auguftine, in his treatife agaiptf 
Petilian; and Theodoret affirms, that he acquired great 
glory during the perfecution. We learn nothing further 
concerning him, excepting that he prefided over the Ro¬ 
man church eight years and between three and four 
months, and died in the year 304. The church of Rome 
honours him as a faint and martyr; but his martyrdom 
may be queftioned. Theodoret. Hijl. Eccl. cap. 2. 
MARCELLI'NUS. See Ammianus, vol. i. 
MARCELLl'NUS, count of Illyria under the emperor 
Juftinian, drew up a.chronicle commencing with the year 
579, in which that of Jerome ends, and carrying it down 
to the fourth confulate of Juftinian, in 534. It was after¬ 
wards continued to 566. It is much commended by Caf- 
fiodorus, who fays that the count alio compofed a very 
minute defcription, in four books, of Confiantinople and 
Jerufalem. His Chronicle is extant, and was firft prinsed 
in the fixteenth century by Schoonhovius; it has fince 
been publifhed by Jofeph Scaliger, and (till more corredtly 
by father Sirmond. Vojjii Bift. Lat. 
MARCEL'LO (Benedetto), a Venetian nobleman, de¬ 
fended from one of the moft illuftrious families of that 
republic; he had cultivated mufic fo ferioufly and fuc- 
cefsfully as a dilettante in the art, under the guidance of 
the celebrated Gafparini, that no contemporary profeflbr 
was more reverenced for mufical fcience, or half fo much 
praifed for his abilities as a compofer, as Marcello. This 
accompliftied nobleman, befides his mufical productions,, 
confifting of pfalms, operas, madrigals, fongs, and cantatas, 
was frequently his own poet, and fometimes aflumed the 
character of lyric bard for other muficians. It is probable 
that Marcello had received fome difguft in his early at¬ 
tempts at dramatic mufic ; for, in 1720, he publifhed a fu¬ 
rious fatire upon compofers, finging-mafters, and fingers 
in general, under the title of “ Teatro alia Moda, or An eafy 
and certain Method of compofing and performing Italian 
Operas in the modern Manner.” But his great mufical 
work, to which Mr. Avifon’s encomiums and Mr. Garth’s 
publication to Englifh words have given celebrity in our 
own country, was firft printed at Venice in eight volumes 
folio, under the following title : “ Eftro poetico-armonico,. 
Parafrafi fopra i primi 50 Salmi, Poefia di Girolamo Af- 
canio Giuftiniani, Mufica di Benedetto Marcello, Patrizj : 
Veneti, 1724 Si 1725.” There is a long and learned pre¬ 
face to the firft volume, in order to give weightand autho¬ 
rity to the author’s plan and ftyle of ccmpofition ; and,, 
befides the great difplay of mufical reading, fagacity, and 
fuperior views to any of his predeceffors, letters are pre¬ 
fixed to each* volume from the author’s friends and ad¬ 
mirers, in the fame encomiaftic (train as the recommenda¬ 
tory verfes with which almoft every book was ufhered into 
the world during the feventeenth century. He was alfo 
the author of a drama called Arato in Sparta, which wa3 
fet by Ruggieri, and performed at Venice in 1704; and 
in 1710 he produced both the words and the mufic of an 
oratorio, called Giuditta. He fet the Pfyche of Caflini 
about the fame time. In 1718, he publifhed fonnets of 
his own writing, without mufic; and in 1725 he both 
wrote and fet a ferenata, which was performed at the im¬ 
perial court of Vienna. There is likewife extant, a com¬ 
plete fcore of an oratorio by Marcello. Its title, which is 
iomewhat long, and its iubjeft Angular for an oratorio, is 
the; 
