Meteorological Observations. 295 



which are copied by Pennant. Those of the Tremola illustrative of 

 Dr. Davy's memoir, seem much the same. Two desirable points 

 are however attained — the identity of the species with Walsh's 

 specimens from the coasts of France and England; and the descrip- 

 tion of an authentic example of the fish. From Dr. Jacob I learn, 

 that two Torpedos were taken at the same time about 10 years ago, 

 and he thinks off Dublin bay, like the present individual ; of one of 

 these there is a cast in the Museum of the College of Surgeons in 

 Dublin* ; this I have examined ; it is 38 inches in length, 28 in 

 breadth, and represents the same species as the subject of the pre- 

 sent communication. — Wm. Thompson, Belfast. 



METEOROLOGICAL OBSERVATIONS FOR APRILj 1840. 



Chiswick. — April 1. Slight rain : cloudy. 2. Hazy : very fine. 3. Cold dry 

 haze : frosty at night. 4 — 6. Very fine. 7. Fine : stormy showers at night. 

 8. Slight showers. 9. Cloudy and cold. 10 — 12. Very fine. 13 — 17. Fine but 

 very dry. 18. Clear, hot and dry. 19. Hazy : very fine. 20. Very fine. 21 — 

 23. Cloudy and fine. 24. Very fine. 25. Very hot, nearly cloudless, and ex- 

 cessively dry. 26, 27. Hot and dry. 28. Excessively hot for the period of the 

 season, thermometer 81° in the shade. 29,30. Very fine: hot and dry. This 

 month is remarkable for the limited quantity of rain and for a high temperature; 

 the latter being the consequence chiefly of a powerful direct solar heat, which 

 overcame likewise the counteracting effects of north and north-east winds, for 

 they were in fact more prevalent than those from the opposite direction. 



Boston. — April 1. Cloudy: rain p.m. 2. Rain. 3 — 5. Fine. 6. Cloudy. 



7. Cloudy : stormy with rain p.m. 8. Cloudy: hail and rain p.m. 9 — 11. Fine. 

 12. Rain: rain early a.m. 13 — 19. Fine. 20 — 24. Cloudy. 25 — 29. Fine. 

 30. Cloudy. 



Applegarth Manse, Dumfries-shire. — April 1. Mild day with a shower. 2. Keen 

 and cold but dry. 3, 4. Dry and more temperate. 5. Fine day after a very 

 slight shower. 6. Stormy day with showers, though slight. 7. Keen cold day. 



8. More moderate. 9. Fine mild day. 10. The same: slightly moist and 

 cloudy. 11. Drizzling all day, but very lightly. 12. Fine though cold : slight 

 rain p.m. 13. Fine soft slight rain. 14. Charming spring day. 15. Thesame: 

 with frost rime a.m. 16,17. Fine but coldish : frost rime again. 18. Very fine 

 warm day. 19. Thesame: white rime a.m. 20. Thesame: slight showers 

 p.m. 21. The same: gentle shower. 22. Thesame: moisture. 23. Dry but 

 threatening. 24. The same : cleared up. 25 — 28. Beautiful day. 29. The 

 same, but cloudy. 30. Thesame: very warm. 



Sun shone out 29 days. Rain, very slight, fell 6 days. Frost, rime 4 days. 



Wind north 1 day. North-east \ day. East-north-east 2 days. East 3 days. 

 East- south-east 1 day. South-east \ day. South-south-east 2 days. South 7 

 days. South-south-west 1 day. South-west 7§ days. West-south-west 1 day. 

 West 24 days. North-west 1 day. 



Calm 15 days. Moderate 8 days. Brisk 3 days. Strong breeze 3 days. 

 Boisterous 1. day. 



Mr. R. Ball has made an excellent cast from the present specimen. 



