Meteorological Observations. 151 



in 'Mitchell's Australia' (pi. 1. p. 14. vol. i.) represents a species 

 with very thick valves, and from Harper's Hill, instead of Illawarra. 

 Morris's species is believed to be Cleobis grandis of the writer. 



The species referred in a former article to Modiolopsis (Hall) 

 appear to have two muscular impressions, and for the most part 

 more properly belong with the Cypricardice. — Sillimans Journal for 

 May 1848. 



A new Organ of Sound in Lepidoptera. By S. S. Haldeman. 



The Lithosia miniata, Kirby (Fauna Bor.-Am. p. 305), or an 

 allied species, produces an audible stridulation by vibrating the 

 pleura beneath the wings, this part being marked in recent speci- 

 mens by parallel lines, apparently indicating the position of the 

 muscles. It is possible that the European Acherontia atropos may 

 produce its peculiar sound in a similar manner. — Sillimans Journal 

 for May 1848. 



METEOROLOGICAL OBSERVATIONS FOR JUNE 1848. 

 Cliiswick. — June 1. Cloudy and fine : rain. 2. Showery. 3. Showery: fine: 

 clear. 4. Heavy showers: fine. 5. Fine. 6. Uniform haze: fine: clear. 

 7. Very fine. 8. Cloudy. 9. Very fine : rain. 10. Constant heavy rain. 

 11. Overcast : cloudy. 12. Cloudy : rain. 13. Heavy showers. 14— 16. Very 

 fine. 17. Cloudy and fine. 18. Densely overcast : rain at night. 19, 20. Over- 

 cast. 21. Cloudy and fine. 22. Very fine. 23. Hazy : rain. 24. Rain: fine: 

 slight rain. 25. Overcast. 26. Fine. 27. Cloudy. 28, 29. Fine. 30. Rain. 



Mean temperature of the month 59 0, 58 



Mean temperature of June 1847 .. 58 *46 



Mean temperature of June for the last twenty years 60 *81 



Average amount of rain in June 1*88 inch. 



Boston. — June 1. Fine : rain p.m. 2. Cloudy. 3. Cloudy: rain p.m. 4. Fine : 

 rain p.m. 5. Cloudy. 6. Fine. 7, 8. Fine : rain p.m. 9. Cloudy : rain p.m. 

 10. Fine : rain p.m. 11. Cloudy : rain early a.m. 12. Cloudy : rain a.m. and 

 p.m. 13. Rain: rain a.m. 14, 15. Fine. 16. Cloudy: rain a.m. and p.m. 

 17. Rain : rain a.m. 18. Cloudy : rain a.m. and p.m. 19 — 21. Cloudy. 22. 

 Fine. 23. Cloudy : rain p.m. 24. Cloudy : rain a.m. and p.m. 25. Cloudy. 

 26. Fine. 27. Cloudy: rain early a.m. 28. Cloudy: rain a.m. 29. Rain: 

 rain a.m. 30. Fine : rain p.m. — This has been the wettest June for nine years, 

 and May the driest for nineteen years. 



Applegarth Mnnse, Dumfries-shire. — June 1 . Showery all day : a.m. clear. 2. 

 Showery all day : thunder. 3. Fine a.m. : rain : thunder. 4. Showery : hail. 

 5. Fair, but cloudy. 6. Slight showers. 7. Showers : thunder : hail. 8. Showers : 

 thunder. 9. Fine : some drops of rain. 10. Fair and fine. 11. Fine: warm: 

 showers. 12. Rain all day. 13. Showery nearly all day. 14. Showers early : 

 cleared : fine. 15. Fiery wind : fair. 16. Heavy showers p.m. 17. Fine : one 

 slight shower. 18 — 20. Very fine summer days. 21. Warm : thunder : showers. 

 22. Fair : wind violent. 23. Slight shower p.m. 24. Fair and pleasant. 25. 

 Fine a.m. : rain p.m. 26 — 30. Constant showers. 



Mean temperature of the month 55°'7 



Mean temperature of June 1847 55 '2 



Mean temperature of June for the last twenty-five years . 56 *1 

 Average amount of rain in June for twenty years 3'16 inches. 



Sandwick Manse, Orkney. — June 1. Showers : fine. 2. Cloudy. 3. Cloudy: 

 rain. 4. Cloudy. 5. Rain : cloudy. 6. Bright : showers. 7. Clear : showers. 

 8. Clear : cloudy. 9—11. Clear. 12. Clear: cloudy. 13. Drops: rain. 14. 

 Damp: rain. 15. Rain : drops. 16,17. Fine. 18. Cloudy. 19,20. Bright: 

 cloudy. 21 — 25. Cloudy. 26. Bright : cloudy. 27. Rain : damp. 28. Rain. 

 29. Cloudy. SO. Bright: drops. 



