412 



Mr. J. N. Lockyer. On the Cause of [Nov. 21. 



Duner's No. Colour. 

 Species 4. 7 0'6 

 95 2-4 

 110 2-4 



Mean 1" 



Species 5. 89 4-2 



153 24 



154 2-4 

 173 24 

 253 4-2 

 258 2-4 

 267 2-4 

 271 2-4 



Mean 2*85. 



Species 6. 6 

 19 

 39 

 48 

 67 

 74 

 76 

 83 

 99 

 188 

 189 

 194 

 202 

 208 

 214 

 227 

 247 

 254 

 259 

 260 

 273 

 274 

 285 

 289 



2-4 

 2-4 

 2-4 

 4-2 

 2-4 

 2-4 

 4-2 

 2-4 

 2-4 

 4-2 

 4-2 

 2-4 

 2-4 

 4-2 

 4-2 

 2-4 

 2-4 

 4-2 

 2-4 

 2-4 

 4-2 

 2-4 ■ 

 2-4 

 0-6 

 Mean 2'9. 



Species 7. 24 

 97 

 115 

 143 



0-6 

 2-4 

 2-4 

 2-4 



