Meteorological Observations. 287 



tirrhinum. Digitalis, Sesamum, Galeopsis, Viola, Orchis, and hence be- 

 lieves that it is a phaenomenon common to all irregular flowers (' Or- 

 ganographie Vegetale,' i. pp. 518. and 519. ed. 1827.). The last- 

 mentioned author figures the Viola hirta in various states of pelori- 

 zation ; and Guillemin, in the work above-quoted, mentions that he 

 has frequently found the Linaria spuria, DC, in the same state, some 

 specimens with 5 spurs, others with 4, 3, or 2. I am indebted to a 

 friend for the sight of a pelorian variety of a species of Tropceolum, 

 and have also much pleasure in showing the Society an imperfectly 

 developed pelorian variety of the pretty Pinguicula vulgaris, which 

 I gathered on Roydon Fen, near Diss in Norfolk, in the summer of 

 1835. This is perhaps interesting, inasmuch as it still further cor- 

 roborates the inference drawn by M. DeCandoUe, and because, as far 

 as I am aware, the occurrence of such a monstrosity has not been 

 before observed in the order Lentibularice. 



Linnaeus attributed the production of peloria to the fecundation of 

 the Linaria by the pollen of another plant ; other authors think it is 

 caused by the puncturing of insects, which produces a deviation in 

 the flow of the sap. 



M. DeCandoUe attributes it to " the phsenomenon of a glandular, 

 thread-shaped body being developed into a true stamen," (Organogr. 

 u. s.) when the other parts of the flower return to symmetrical ar- 

 rangement. Adam White. 



December 7, 1838. 



METEOROLOGICAL OBSERVATIONS FOR OCT.^ 18.39. 



Chiswick. — Oct. \. Foggy : very fine. 2. Foggy : rain. 3. Very fine. 4. 

 Rain : stormy with rain at night. 5. Boisterous : clear. 6. Fine. 7. Cloudy : 

 fine. 8. Hazy: very fine. 9. Very fine : heavy rain at night. 10. Showery: 

 sultry at intervals. 11. Very fine. 12. Fine: rain at night. 13. Foggy : fine. 

 14. Fine. 15,16. Slight fog : fine. 17. Foggy. 18. Drizzly. 19, 20. Foggy: 

 fine. 21,22. Hazy: fine. 23,24. Rain. 25. Overcast : fine. 26,27. Clear 

 and fine. 28. Stormy: showers of rain . 29,30. Hazy and cold. 31. Rain. 



Boston. — Oct. 1. Fine. 2. Cloudy : rain p.m. 3. Fine. 4. Rain : rain early 

 A.M. 5. Cloudy: rain early a.m. 6. Cloudy. 7,8. Fine. 9. Cloudy. 10. 

 Rain. 11. Fine. 12. Cloudy. 13. Cloudy : rain early a.m. 14,15. Cloudy. 

 16. Fine. 17. Cloudy. 18. Cloudy: rain a.m. 19. Fine. 20,21. Foggy. 

 22,23. Cloudy. 24. Rain. 25. Cloudy. 26. Fine: rain early a.m. 27. Fine: 

 rain P.M. 28. Rain: rain early a.m. 29. Cloudy: rain: stormy night. 30. 

 Stormy. 31. Cloudy. 



Applegarth Manse, Dumfries-shire. — Oct. 1. Wet throughout. 2. Very wet 

 morning : cleared at noon. 3. Fair till 1 1 a.m., when began to rain. 4. Fair 

 all day. 5. Fine calm day : hoar frost morning and ice. 6. The same : hoar 

 frost still stronger. 7- A very good harvest day : getting cloudy p.m. 8. Driz- 

 zling all day. 9. The same. 10. The same a.m. : fair p.m. 11. Fair through- 

 out. 12. The same. 13. The same : overcast in the evening. 14. Drizzling 

 all day. 15. Dull, cloudy, and damp : rain p.m. 16. Sunshine and showers 

 alternately. 17. Very fine day: hoar frost early a.m. 18, 19. The same: ice 

 on the ponds. 20. Very fine day. 21. Fair; but dull and foggy. 22. Fair till 

 noon, when rain came on. 2.3. Rain all day. 24. Rain all day though slight. 

 25, 26. Fair throughout. 27. Clear and temperate. 28. Fine October day. 

 29. One slight shower, when it cleared. ,30. Fair: air very keen. 31. The 

 same : keen and cold like a day in March. 



