Meteorological Observations, 383 



DescriiMon of a new species of Petrogale. 

 By Dr. J. E. Gray, F.R.S., V.P.Z.S. &c. 



Yellow-legged Rock-Kangaroo, Petrogale xanthopus. 



Pale brown, minutely grizzled ; chin and beneath white : streak 

 on side from the back of shoulder, and along the side of the face 

 mider the eye, whitish ; dorsal streak narrow, brown ; legs, feet, and 

 tail bright yellow ; end of tail more bushy and varied with brown. 



Australia (Richmond Riyer ?) 



This species has all the markings as in Petrogale lateralis, but 

 differs in being of a much paler and yellower colour, and in the 

 bright yellow colour of the legs and basal part of the tail. It is 

 about the same size as P. penicillatus, or rather between it and 

 P. lateralis. 



There are two specimens of this species (male and female) pro- 

 cured by Mr. Strange. — Proc. Zool. Soc. Nov. 14, 1854. 



METEOROLOGICAL OBSERVATIONS FOR SEPT. 1855. 



Chisicick. — September 1. Clear and fine : cloudy. 2. Cloudy. 3. Clear: slight 

 shower : fine. 4. Cloudy. 5. Fine : cloudy : clear and cold at night. 6. Clear: 

 cloudy. 7. Very clear : cloudy : fine. 8. Dense fog : clear and very fine. 9. Very 

 fine. 10. Foggy: fine: very clear. 11. Verj- fine. 12. Slight fog : verj- fine : 

 clear : rain at night. 13. Rain. 14. Constant rain. 15. Uniformly overcast : 

 fine. 16. Overcast : clear and fine. 17. Rain : hazy : overcast. 18. Hazy : over- 

 cast. 19. Shght haze : fine. 20 — 22. Foggy in the mornings: very fine. 23. 

 Fine : cloudy : very clear. 24. Overcast. 25. Fine : cloudy : clear : frosty at 

 night. 26. Slight haze : very di7 air : frosty at night. 27. Foggy : very fine : 

 loudy. 28, 29. Cloudy : rain. 30. Hazy : cloudy : rain at night. 



Mean temperature of the month 56°*11 



Mean temperature of Sept. 1851 56 "93 



Mean temperature of Sept. for the last twenty-nine years ... 56 '98 

 Average amount of rain in Sept 2-503 inches. 



Boston, — Sept. 1. Cloudy : rain P.M. 2 — 6. Cloudy. 7, 8. Fine. 9, 10. Cloudy. 

 11,12. Fine. 13. Fine: rain a.m. 14—18. Cloudy. 19,20. Fine. 21,22. 

 Cloudy. 23. Fine. 24. Fine : rain a.m. 25. Cloudy. 26, 27. Fine. 28. Fine: 

 rain p.m. 29. Cloudy : rain a.m. 30. Cloudy. 



Sandivick Manse, Orkney. — Sept. 1,2. Bright a.m.: cloudy p.m. 3. Cloudy 

 A.M. and P.M. 4. Bright a.m. : clear p.m. 5. Showers a.m. : clear p.m. 

 6. Drizzle a.m. and P.M. 7. Cloudy a.m. : showers p.m. 8. Clear a.m. : showers 

 P.M. 9. Bright a.m. : showers p.m. 10. Cloudy a.m. : showers, aurora p.m. 11. 

 Showers a.m. : cloudy, aurora p.m. 12. Rain a.m. : clear, aurora p.m. 13. Cloudy 

 a.m. : clear p.m. 14. Cloudy, hoai'-frost a.m. : clear, aurora p.m. 15. Bright, 

 hoar-frost a.m. : cloudy p.m. 16. Showers a.m.: clear p.m. 17,18. Showers 

 a.m. and P.M. 19. Cloudy a.m. : drops p.m. 20. Cloudy a.m. and p.m. 21. 

 Showers a.m. : drizzle p.m. 22. Damp a.m. : drizzle p.m. 23. Cloudy a.m. : 

 clear, fine p.m. 24. Clear a.m. : fine, cloudy p.m. 25. Cloudy a.m. : fine, drops 

 P.M. 26. Drops A.M. : fine, clear P.M. 27. Drops a.m. : cloudy p.m. 28. Drops 

 A.M. and P.M. 29. Rain a.m. : fog p.m. 30. Fog a.m. and p.m. 



Mean temperature of Sept. for twenty-eight previous years ... 52°'42 



Mean temperature of this month 52 '74 



Mean temperature of Sept. 1854 55 -07 



Average quantity of rain in Sept. for fifteen previous years ... 2*81 inches. 



