348 OBSERVATIONS on THE 
N?’. 6. A leaf, of the common fize, after the flower has. 
fallen, and the feed-veffel is ripe. Some of the princi- 
pal nerves of the leaf are reprefented. 
N*. 7. The germen, or feed-bud, with the ftyle, and ftig- 
et of the fize they appear a few days after the falling 
off of the flower. 
N’. 8. One of the leaves of the flower cup. 
N°. g. A feed, of its natural fize, when ripe. 
N°. ro. A filament and anthera, of the natural fize. 
N°. 11 and12. Theantherz, at thetime of their fhed- 
ding the pollen, or fecundating duft, burfting laterally. 
Ly hAiree.€ #4 E 
Obfervations on the conftruction of Hofpitals, by Mr. Le 
Roy. Member of the Royal Academy of Scieices— 
(Extraéted from an Effay on the fubject, which, with 
Jeveral elegant plans, was tranf{mitted by the author to 
the Society, but could not be inferted entire, as it con-~ 
tained many remarks of a local nature, refpecting Paris 
—only. 
HE conftruction of Hofpitals is in general ob- 
jeCtionable, either becaufe many of the wards 
do not admit of perfect ventilation, or becaufe the air paf- 
_ fes from one patient over another, by which means con- 
tagious difeafes are often fpread. 
To avoid thefe inconveniences, a large Hofpital fhould 
confift of diftinct and feperate buildings, each forming one 
ward, erected upon arches or columns, at a confiderable 
height 
