MR. W. C. WILLIAMS ON ANTIMONY OXYCHLORIDES. 61 



Rainfall at Old Trafford, Manchester. 



November. 



December. 



Year. 



Rainfall. 



Differ, of 



Differ, of 



Rainfall. 



Differ, of 



Differ, of 







21 years. 



77 years. 





21 years. 



77 years. 





in. 



in. 



in. 



! in. 



in. 



in. 



1861. 



3-878 



+ 0-950 



+0*064 



2*066 



-0-987 



— 1*241 



1862. 



1-685 



-1-243 



— 2*129 



3*221 



+0*168 



-0*086 



1863. 



2*902 



— 0-026 



— 0-912 



3*064 



+o*oii 



+0*057 



1864. 



3"255 



+0-627 



-°"559 



1*970 



-1-083 



-1*337 



1865. 



2*770 



-0-158 



-1*044 



o-743 



-2*310 



-2*564 



1866. 



5-721 



+2-793 



+ 1*907 



4'i54 



+ I-IOI 



+0*847 



1867. 



a'43 1 



-0-497 



-I-383 



3-975 



+0*922 



+o*668 



1868. 



3108 



+0-180 



— 0*706 



8123 



+ 5*070 



+4*816 



1869. 



4-284 



+ 1-356 



+0*470 



3-623 



+0*570 



+0*316 



i860. 



2-420 



-0-508 



~ r 394 



2-53* 



-0*521 



-0775 



Means 



3' 2 45 



2-928 



3-8i4 



3-347 



3-o53 



3'3°7 



in. 



Yearly fall, 

 days. 



1861 29*727 199 



1862 38*598 218 



1863 3 8 '34° 2I 5 



1864 30*640 171 



m. 

 1866 43*169 



1867 34-579 



1868 32*225 



1869 35-446 



days. 

 . 214 

 . 188 



197 



1865 



29*389 



164 



1870 29-551 155 



VIII. Contributions to our knowledge of the Antimony 

 Oxy chlorides. By William Carleton Williams, 

 Dalton Scholar in the Laboratory of Owens College. 

 Communicated by Professor Roscoe, F.R.S. 



Read October 17th, 1871. 



Phosphorus oxychloride, PO C\ v having been prepared 

 by heating together one molecule of phosphorus pentoxide 

 with three of pentachloride, it appeared not unlikely that 



