Meteorological Observations. 143 



PROPOSED WORK ON APHIDES. 



The most complete work hitherto published on Aphides is that of 

 Kaltenbach. He has described 156 species, which he has distributed 

 into the following genera: — 1. Aphis, Linn.; 2. Lachnus, Illiger; 

 3. Schizoneura, Hartig ; 4. Tetraneura, Hey den ; 5. Pemphigus, 

 Hartig; 6. Vacuna, Heyden ; 7. Phylloxera, Fonscolombe ; 8. Rhi- 

 zobius, Burmeister ; 9. Forda, Heyden ; 10. Trama, Heyden ; 11. Pa- 

 racletus, Heyden. I take this opportunity to state that I shall be 

 glad of information respecting Aphides and the plants which they 

 infest, as 1 am engaged in describing the British species of that tribe 

 of insects. — Francis Walker, 49 Bedford Square, July 1846. 



METEOROLOGICAL OBSERVATIONS FOR JUNE 1846. 



Chiswick. — June 1 , 2. Slight haze : cloudless. 3. Slight haze : very dry air : 

 clear and fine. 4—6. Hot and dry. 7. Sultry. 8, 9. Cloudy and fine. 10. 

 Overcast. 1 1, 12. Very fine. 13,14. Hot and dry. 15. Cloudless. 16 — 18. 

 Hot and dry, with slight haze. 1 9. Foggy : excessively hot : clear at night. 

 20. Hot and sultry. 21. Uniformly overcast : fine. 22. Sultry: excessively 

 hot : rain : at night thunder, lightning, and heavy rain. 23, 24. Densely clouded. 

 25. Fine. 26. Overcast : heavy showers. 27,28. Cloudy and fine. 29. Fine, 

 with clouds : windy : clear at night. 30. Cloudy and fine : overcast. 



Mean temperature of the month 66°*63 



Mean temperature of June 1845 62*14 



Average mean temperature of June for the last twenty years 60 *88 

 Average amount of rain in June 1*88 inch. 



Boston. — June 1. Cloudy. 2. Fine : half-past 1 1 o'clock a.m. thermometer 75°: 

 2 o'clock p.m. 78°. 3. Fine: 3 o'clock p.m. thermometer 80°. 4. Fine. 5. Cloudy. 

 6. Fine : quarter-past 2 o'clock p.m. thermometer 82°. 7. Fine. 8. Cloudy : 

 lightning a.m. 9, 10. Cloudy. 11 — 17. Fine. 18. Fine: quarter-past 11 o'elock 

 a.m. thermometer 80°. 19. Fine. 20. Cloudy. 21. Fine. 22. Cloudy: rain 

 p.m., with thunder and lightning. 23. Rain : rain early a.m.: rain p.m. 24. Fine. 

 25. Fine : rain and hail, with thunder and lightning p.m. 26 — 28. Cloudy. 

 29, 30. Fine. — The past month has been considerably warmer than any month of 

 my observations. 



Sandwick Manse, Orkney. — June 1 — 3. Fine. 4. Fine: bright: fine. 5. Fine: 

 bright : cloudy. 6. Damp. 7. Damp: cloudy. 8. Cloudy. 9. Damp: fog: 

 cloudy. 10. Cloudy: rain. 11. Bright: rain. 12,13. Bright : clear. 14, 

 15. Bright: cloudy. 16. Bright: clear. 17, 18. Fine. 19. Thunder and hail*: 

 cloudy. 20. Clear : fine. 21. Clear. 22. Cloudy : fog. 23. Rain and thunder : 

 thunder and rain. 24. Drizzle: thunder and drops. 25, 26. Clear. 27. Rain: 

 clear. 28. Bright : cloudy. 29. Bright : drops. 30. Bright : showers. 



Applegarth Manse, Dumfries-shire. — June 1—6. Very fine. 7. Very fine : 

 thunder. 8. Fine soft rain. 9, 10. Slight shower. 11. Fair, but cloudy. 

 12 — 16. Fair and fine. 17. Fair and fine : warm. 18. Fair and fine: thunder. 

 19. Slight drizzle : thunder. 20. Dry and withering. 21. Very warm and 

 withering. 22. Very warm : showers : thunder and hail. 23. Very heavy rain. 

 24, 25. Showers : fair p.m. 26 — 29. Heavy rains. 30. Very heavy rain. 



Mean temperature of the month 63°"2 



Mean temperature of June 1845 56 '5 



Mean temperature of June for twenty-three years. 55 '7 

 Mean rain in June for eighteen years 3 inches. 



* The most severe thunder-storm ever remembered : one man was killed, others 

 knocked down, and the lightning struck various places. It was at its height be- 

 tween six or seven o'clock a.m. 



