Meteorological Observations. 167 



gonic acid, was always produced, the same which M. Pless has re- 

 cently extracted from the leaves of geranium. Repeated analyses 

 made of the salts of silver, harium and copper, of four different kinds, 

 all agreed with the formula OH'? 0«(Ag), CH'7 e (Ba), CH' 7 

 O'(Cu). 



The barytic salt is obtained in fine pearly laminae, which are greasy 

 to the touch, and resemble cholesterine. The author succeeded once 

 only in obtaining a barytic salt, less soluble than the pelargonate, 

 and whose composition approached that of the caprate. Oil of rue 

 furnishes an excellent means of preparing pelargonic acid in large 

 quantity. All that is requisite is to heat it for some minutes with 

 nitric acid diluted with an equal volume of water ; the reaction then 

 goes on of itself; the product saponified by potash, decomposed by 

 a mineral acid, then rectified by desiccation, yields pelargonic acid. 



The author has also transformed caprol into a polymeric solid, 

 metacaprol, resembling metsenanthol and metaldehyde. — Compter 

 Rendus, Fevrier 14, 1848. 



METEOROLOGICAL OBSERVATIONS FOR JUNE 1848. 

 Chiswick. — 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°*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 Alanse, 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,^bul 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 : fiue. 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 0- 7 



Mean temperature of June 1847 55 '2 



Mean temperature of June for the last twenty five years . 56 'I 



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



Sandwich Manse, Orkney. — June]. 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. 80. Bright: drops. 



