Meteorological Observations. 399 



separate by diparticulation, and their remains are found arranged in 

 spiral lines upon the outside, so as to t^ive the short, thick rhizome 

 the aspect of a piece of a pahn stem. As in Nuphar, the roots are 

 produced in bundles at the bases of the petioles, and fall off suc- 

 cessively upwards as the new ones are developed, leaving very con- 

 spicuous scars. The internal structure of the stem is quite Mono- 

 cotyledonous in its character, presenting no trace of the arrange- 

 ment of the vascular bundles into rings of wood, no true woody 

 fibres, and no cambium layer. The vascular bundles, which are 

 composed exclusively of s})iral, annular and reticulated ducts su»J 

 rounded by elongated parenchymatous cellular tissue, are isolated 

 and arranged just as in Monocotyledons, such as the Palms ; and the 

 outer part of the stem exhibits a cortical parenchyma, much more 

 like that of the herbaceous rhizomes of the rush- like plants, thanJ 

 any other known structure ; it bears not the least resemblance to 

 the bark of Dicotyledons. 'I'he results of the investigation show 

 that Victoria, like Nuphar, has a stem of essentially Monocotyle- 

 donous structure. 'J'he paper was accomj)anied by drawings illus- 

 trating the general and microscopic diW^iomy ot^tla&'ftexaK**^Froct 

 Royal Society. , m 'Vjehi ?/ji/5i 'ijjBJuiv sdJ 



,,-. ■ 'y\:h^(i .A 



METEOROLOGICAL OBSERVATIONS FOR SEPT. 1852. 



Chisvnck. — Soptemher 1. Slight rain. 2. Foggy : cloudless and hot. 3, 4. Very 

 fine. 5. Overcast : clear. 6. Very fine : rain at night. 7. Hazy : rain. 8. Heavy 

 rain : thunder and ligl\tning : cloudy : clear at night. 9. Cloudy : showery. 10. 

 Cloudy. 11,12. Fine. 13. Very fine. 14. Clear: dry air : densely overcast at 

 night. 15. Overcast. 16. Fine: clear and cold at night. 17. Slight fog, with 

 very heavy dew : very fine : clear and cold. 18. Foggy : heavy rain. 19. Cloady : 

 unifonuly overcast. 20. Slight rain : showery : clear. 21. Boisterous, with rain. 

 22. Clear : very fine. 23, Overcast : very fine. 24. Foggy : very fine : dense fog 

 at night. 25. Dense fog : very fine. 26. Heavy dew : foggy : hazy throughout. 

 27. Dense fog : overcast : heavy rain at night. 28. Constant rain : harometer very 

 low : foggy. 29. Cloudy : slight showers : cloudy. 30. Overcast : fine hut windy : 

 overcast. 



Mean temperature of the month 56°'20 



Mean temperature of Sept. 1851 55 -15 



Mean temperature of Sept. for the last twenty-six years ... 57 '15 

 Average amount of rain in Sept 2*52 inches. 



Boston. — Sept. 1. Cloiidy. 2. Fine. 3,4. Cloudy. 5. Cloudy: rain a.m. 

 6. Cloudy: rain p.m. 7. Cloudv: rain : thunder and lightning early a.m. : rain p.m. 



8. Fine. 9. Fine : rain p.m. 10. Fine. 11— 13. Cloudy. 14. Fine. 15. Cloudy: 

 rain a.m. and p.m. 16. Fine: rain early a.m. 17. Fine. 18. Fine: rain a.m. 

 and p.m. 19, 20. Cloudy : rain early a.m. 21. Rain: rain a.m. 22. Fine. 23. 

 Cloudy. 24. Fine. 25-27. Foggy.' 28. Rain : rain a.m. and p.m. 29. Cloudyii 

 rain a.m. 30. Fine. , j^^ 



Sandwich Manse, Orkney. — Sept. 1. Showers. 2. Clear: fine: cloudy: fine. 

 3. Clear: fine. 4. Bright : clear: fine: aurora. 5. Fog. 0. Hazy: cloudy. 7 — 



9. Fine: ch'ar : fine. 10. Cloudy: showers. 11. Showers: drops: aurora. 

 12. Showers: aurora. 13,14. Sleet-showers. 15,16. Showers. 17. Bright: 

 showers : aurora. 18. Drizzle : rain. 19. Bright : clear . rain. 20,21. Bright: 

 cloudy ; rain. 22. Showers : cloudy. 23. Cloudy : rain. 24. Showers : clear. 

 25. Bright : cloudy. 26. Clear. 27. Showers : rain. 28. Showers : lunar rain- 

 bow. 29. Bright : cloudy : rain. 30. Rain : cloudy. 



' Mean temperature of Sept. for twenty-five years 52^-22 ' 



-Juo yMean temperature of this month i»u»..^iUv*. 5S '45 



i|.j [£{-// Average quantity of rain in Sept. for six years .4at4-i..^ij.., 2 49 inches. 



