352 Sixty Articles of Literary and Philofophical Intelligence. [Nov. 1, 
nation of brown oxyd with acids or other 
subftances. 
The fp. grav. of Tungften was ftated 
by the Elhuyars to he 17. 6; Morveau 
has at length fucceeded in the reduction of 
this moft refra@tory metal, and finds its 
ip. gr. equal only to 3.3406. 
Profeflor OLIVARIUS, editor of * Le 
Nord,” has iterted, in his thirteenth num- 
ber, an epigram on Mallet du Pan, which 
we tran{cribe for the perufal of our rea- 
ders. 
Ci-git Mallet du Pan 
Dont la mémoire eft chére: 
Des Anglais partifan 
3} fit bien fon affaire. 
Cet auteur eut-il tort 
S’il trouva, pour leur plaire, 
Un paéte dans le Nord 
Et la lune fectaire ?- 
LA CepEpE has publifhed a new ar- 
rangement of the Mammifere, and an- 
other of Birds. The fecond volume, in 
gto, of his Hiftory of Fifhes. is about to 
appear: it will contain at leaft thirty-two 
new genera. 
AzaRa, governor of Chili, has pub- 
lifhed, in Spanith, a hiftory of the qua- 
drupeds which are natives of that almoft 
tnknown country; of thefe feveral are 
now defcribed for the firf time. 
‘A work on the birds of Chili, by the 
fame author, has juft made its appearance, 
CuvieR continues, with fuccefs’ and 
enabated ardour, his refearches in compa- 
fative anatomy. ‘The clafs of Vermes has 
of late excited his attention, and he has di- 
vided them into two great families: r. 
the Mollufce, which have a heart and com- 
plete circulatory fyftem ; 2. the Zoophytes, 
3which have neither. 
The prefect of the department of the Szine 
has afiifted in an experiment made upon 
ventilators employed to dry linen. The 
following is the report: ‘* C. Pocnon 
fthe mventer), began with foaking in 
water a certain quantity of linen, which 
was afterwards equally prefled. A por- 
tion of this was placed upon the ventila- 
‘tors, where it is conftantly agitated whillt 
expofed to the molt violent aétion of the 
air. The linen upon this machine dried 
in forty-five minutes, whereas the other 
portion, which had been equally moiftened 
and prefled, was hardly dry in eleven 
fours, By a further improvement in the 
machinery, of which it sis very capable, 
efpecially of the air-pump wih which the 
mvilt air is withdrawn and dry air fubiti- 
tuted, a ftiill greater effe& may be expect- 
ed from this machine.” 
Mai, Buschks DORF of Leipfic has given 
the following ufeful procefs for tinning 
copper veflels, which has the advantage of 
being very durable and perfeétly innox- 
ious, as it contains not a particle of lead. 
‘¢ When the veflel has been prepared and 
cleaned in the ufual manner, it muft be 
roughened on the infide by being beat on 
a rough anvil, in order that the tinning 
may hold betier. ‘The firft coating of tin 
is given with perfeétly pure-grained tin, 
with the addition of falammoniac. This 
ferves as a medium to conneét the fecond 
coating, which confifts of two parts tin 
mixed with three of zinc, which muft be 
applied with fal-ammoniac fmooth and 
even. It is- then to be hammered with 
a fmocthing hammer, after it has been 
properly fcoured with chalk and water, 
which renders it move folid, and gives it a 
{mooth and compaé furface. 
This-tinning is very durable, and has 
a beautiful colour which it always re- 
tains. : 
DEsFONTAINES has at Jength finifhed 
his grand work, the Flora of Mount Atlas. 
Tt contains.a defcription of 1600 plants, 
300 of which were not before known, and 
261 plates. 
DecanDOLLeE has publifhed four faf- 
ciculi of the Graminaceous Plants, with 
engravings by Redonté. 
VENTENaT has publifhed a new edi- 
tion of Jufficu, with many impertant ad- 
ditions. He has alfo finifhed the great 
work of Bulliard on the Fungi, which 
will be put to prefs as foon as poffible. 
The Difiounaire Botanique of Bulliard 
has been edited afrefh by Richard, and 
has been enriched by him with many in- 
terefting articles. : 
Picot ta PEyRovsE has publifhed a 
new Monography of the Saxifrages of the 
Pyrenees. wae * 
DeEsFONTAINES has given to the pub- 
lic his excellent Memoir on the Structure of 
the monccotyledonous Plants, or thofe 
that have one feminal leaf, fuch as the 
palm, afparagi, junci, &c. He has fhown 
that the whole internal part of thefe vege- 
tables is compofed of medullary matter 
and a few longitudinal fibres. Plants of 
this fru€ture have all their folid parts at 
the furface ; whereas the contrary. takes 
place in the dicotyledonous plants, the 
jurface of thefe being an epidermis of lit- 
tle folidity, and the principal ftrength con- 
fitting in the central wood. ° 
According to Cyaprat, the inhabi- 
tants of the Cevenres, in order to flop the > 
progrels of the caries in their chefnut- 
trees, make ulé of the a€tual cautery with 
the happieft fuccefs. Ayephiie 
MONTHLY 
