Meteorological Observations. 71 
vascular bundles which separate from the medullary sheath ascend 
all three into the petiole, and that the bud formed at their axil, and 
always placed between the intermediary bundle and the stem, is de- 
cidedly at the middle of the base of the leaf. If, on the contrary, the 
stem-leaves which have a lateral tendril are considered, we observe 
that of the three fibro-vascular bundles, only two, the central and 
one of the lateral ones, enter the petiole, and that the other pene- 
trates into the tendril. In this case, the bud, from its constant 
position between the intermediary bundle and the stem, is no longer, 
like this intermediary bundle, at the centre of the base of the petiole, 
but on the side, and appears to be almost between the leaf and the 
tendril. Lastly, we frequently meet in botanical gardens with, the 
upper leaves each accompanied by two lateral tendrils. The anatomy 
then indicates that a single bundle, the central one, traverses the 
petiole, and that the two lateral ones pass each one into a tendril. 
With respect to the bud, it necessarily is situated between the middle 
of the base of the petiole and the stem.—Ann. des Sci. Nat., March. 
METEOROLOGICAL OBSERVATIONS FOR MAY 1845. 
Chiswick.—May 1,2. Very fine. 3. Fine, with clouds. 4. Cloudy and cool. 
5. Fine: dense clouds: clear. 6. Cloudy: rain, 7. Cloudy: showers. 8. Rain. 
9. Cloudy: clear. 10. Foggy: cloudy: clear at night. 11. Cloudy. 12. Rain: 
showery. 13. Cloudy and fine. 14. Fine. 15. Overcast: fine. 16. Cloudy. 
17. Overcast: slight frost at night. 18. Cloudy: showery. 19. Cloudy and 
cold. 20. Cloudy: rain. 21, Heavy rain. 22. Cloudy: veryclear. 23. Over- 
cast: fine: heavy rain. 24, Hazy clouds: heavy rain at night. 25. Rain. 
26. Overcast: heavy rain. 27. Very fine. 28. Hazy anddamp. 29. Thick 
haze: rain. 30, Fine. $1. Very fine: cloudless: overcast at night——Mean 
temperature of the month 5°-3 below the average. 
Boston.—May 1. Fine. 2. Fine: thunder and lightning r.m., with rain. 3. 
Cloudy : thunder and lightning p.™., with rain. 4. Fine: rain earlya.m. 5. Fine: 
rain early a.M.: rainr.M. 6. Rain. 7. Cloudy: rain early a.m.:rainr.m. 8. 
Fine: rain a.m. 9. Cloudy: rain early a.m. 10. Rain, 11. Cloudy. 12. Fine: 
rain a.M. and p.m. 13. Fine: rainr.m. 14,15. Fine. 16. Cloudy. 17. Cloudy: 
rain a.M. 18. Windy. 19. Fine: rainearly a.m. 20. Fine: raine.m. 21. 
Cloudy. 22, Fine. 23. Cloudy: rainer.m. 24, 25. Cloudy: rain early a.m. 
26. Cloudy: rain early a.m.: raine.m. 27. Fine. 28. Fine: rain early a.m. : 
raine.M. 29. Cloudy: raine.m. 30, 31. Fine. 
Sandwick Manse, Orkney.—™May 1. Drops: showers. 2. Showers. 3. Showers: 
sleet. 4. Bright: showers. 5—7. Clear. 8. Rain: showers. 9, 10, Showers, 
11. Bright: cloudy. 12,13. Clear. 14. Drops: clear. 15. Fog: drizzle. 
16. Showers: drizzle. 17. Bright: clear. 18. Cloudy: clear, 19. Clear. 
20. Cloudy. 21. Bright: cloudy. 22,23. Cloudy: damp. 24, 25. Cloudy. 
26. Bright: cloudy. 27. Cloudy. 28, 29. Bright: clear. 30. Cloudy: fine. 
31. Bright : fine. 
Applegarth Manse, Dumfries-shire—-May 1. Heavy showers. 2, 3. Heavy 
showers, with hail. 4. Sunshine and showers. 5. Fine. 6. Moist: light drops. 
7—9. Slight showers. 10. Fine. 11. Rain p.m. : hoar-frost a.m. 12. Showers, 
13. Fair and fine. 14, Rain nearly all day. 15—17. Fair: fine: bracing air. 
18. Fair, but threatening. 19. Fair, but threatening: fine. 20, 21. Fair, but 
threatening: droughty, 22—24, Fair, but threatening. 25. Fair, but threaten- 
ing: few drops of rain. 26. Fair, but threatening: very droughty. 27—30. 
Fair, but threatening. 31. Fine : warm. 
