678 
thofe relative to the melody of images 
3p mufic, and the ‘* harmony of co- 
-Jours in painting;” as weil as feveral 
curious preblems which are refolved in 
a very fimple manner. 
This work wil, perhaps, be read with 
avidity by artifts of the arft order,.who 
ufually unite with the impulfeof genius, 
the fludy of the preliminary ictences. 
_ & Bibliothéque Phylico-économique, 
inftruGtive et amufante, a PUfage des 
Villes et des Campagnes; publiée par 
Cahiers avec des Planches, le premier 
de chaque mois, 4 commencer du 1*", 
Brumaire.an XI, par une Société de 
Savans, d’frtiftes et d’Agronomes, et 
redigée par C. S$. Sonnins, de la So- 
eicté d Agriculture_de Paris, et de plu- 
' feurs Sociétés favantes et Littéraires. 
Ces trois Cahiers de 216 pages comple- 
tent la premiere Année; ils contiennent, 
entr’autres.Articles intereflanset utiles : 
Moyen éprouvé pour nettoyer les arbres 
fruitiers et les préferver de la moufle et 
des Infectes ; Maniére de conferver les 
artichauts pour étre mangés Vhiver ; 
IVioyen de préferver de la rouille Jes uf- 
tenfiles de fer et d’acier; Machine pour 
faciiiter les Opérations de Parpentage ; 
Maniére de rendre Je luftre aux vitres 
anciennes et ternies,” &c.—The Phy fi- 
co-Economical Library, &c. by a So- 
eicty of learned Men. 
The title of this work, of which the 
tweifth Number has now been publith- 
ed, will fufficiently fhew its nature 
and detign. 
*¢ Flore du Nord de la France , ou 
Defcription des Plantes indigénes et de 
celles cultivécs dans les Deépartemens 
de la Lys, de Efcaut, dela Dyle et de 
deux Nethes, y compris les Plantes qui 
naiilent dans jes pays limitrophes de 
ces deux Départemens, Ouvrage de 
prés de trente ans de Soins et de Re- 
cherches, dans lequel les Plantes font 
arrangees {uivant le Syfieme de Linné, 
et décrites par genres et efpeces, avec 
des Obférvations de l’Auteur, On ya 
joint les licux pofitits ot elles naiffent, 
et leurs proprié.és reconnues dans la 
Médecine, dans les Alimens et dans les 
Arts; par F. Roucet,” &c.— a 
Flora of the North of France, or a De- 
fcription of the indigenous Plants, as 
well as of thofe cultivated in the De- 
partments of the Lys, the Scheidt, the 
Dyle, and the two Nethes, comprifing 
alfo.the Plants produced in the Coun- 
ties adjacent to thefe two Departments, 
&c, by F. Roucet, Officer of Health. 
Botanifis have agreed in prefixing 
_ Retrofped? of Erench Literature.—Mifeellaneeus. 
the appellation of a Flora to. thofe) 
works de{criptive of the plants of a par 
ticular county or diftriét. They con- 
fit generally of three different kinds. 
1. Simple catalogues, deftined to in. * 
dicate the various herbaceous treafures 
to be found in any particular fpot, and 
on this occafion, it is cultommary merely 
to defignate them by the generical and 
{pecific names employed in the laft edi~ 
tion of the Syfema Plantarum of Lin- 
neus; or, if the particular {pecies be 
not there mentioned, then by thole 
which it has received in the bett known 
work. In this cafe, it is proper to ve- 
rify the faéts with exaétnefs, and to 
rectify all errors, as well as to point out © 
the local ftations of rare plants; if a 
new {pecies fhould occur, then charac. 
teriftic phrafes, accompanied with a des 
{cription, fhould follow. 
In the fecond cafe, when a Flora is 
intended to point out plants to thofe 
who repair to the country for the ex- 
prefs purpofes of herborization, it is 
neceflary that the volume fhould be 
portable... Accordingly, the plants 
ought to be defcribed in a fuccingk 
manner, while, in addition to their ef- 
fential and diftinétive characters, the 
places where they are to be found, as 
well as the duration and epoch of their 
blowing, fheuid be carefully marked. 
To attain this, either a fimple method 
like that of Tournefort, or what is ftilh 
better, an analytical one like that of 
Lamark, fhould be adapted, by the aid 
of which, the fttudent may eafily. difco- 
ver the name of the plant, culled by 
him. One of the, belt works in, the 
French language upon this fubject, is 
“ae Botanographie Belgique, by Leftibous 
ois. 
The third kind of Flora, is that ex- 
prefsly drawn up for the ufe of well- 
informed men. On this occafion the 
defcription of well-known plants ought 
of courfe to be fhort, but it fhould - 
abound with remarks relative to new 
{pecies, &e. ty 
The Sjzonimesare to be difenfled with . 
all the feverity of criticifm, and nothing 
relative to the fituation of the different 
parts of fructification ought to be omit- 
ted. Productions of this laft kind, can 
only be well executed by thofe, wha 
are intimately acquainted with the ve- 
getable fyftem, not, of a particular 
country alone, but of all countries. 
La Flore Atlantique of Profefier Deston- 
taines is the bet model of this laft {pes _ 
cles of compolition, 
Bot 
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