RUST AND MILDEW IN INDIA. 43 



excessive in January, but deficient or normal in the remaining 

 months ; rain excessive in January, deficient or normal in the three 

 following mouths. Conditions favourable to the host, but not to 

 the parasite. Outturn somewhat greater than in the previous year. 

 188-1 • Humidity excessive in the first three months, and defi- 

 cient thereafter ; cloud excessive in January, normal in February 

 and March, and excessive in April ; rain deficient throughout. 

 The last condition was decidedly unfavourable to the fungus. Out- 

 turn rose to a high level. 



1885. Humidity and cloud on the whole excessive ; rain ex- 

 cessive in January, deficient in February and March, and excessive 

 in April and May. Conditions favourable to both. Outturn 

 remained much the same. 



188G. Humidity and cloud excessive in January and March, 

 and normal in February ; rain excessive in January and March, but 

 deficient in the remaining months. Conditions very favourable to 

 the fungus. Outturn fell considerably, and in this case very 

 probably on account of the fungus. 



1887. Humidity excessive in January, but deficient thereafter : 

 cloud excessive in January, normal in February, and deficient 

 thereafter ; rain deficient throughout. Conditions unfavourable to 

 both, and especially to the fungus. Outturn fell still low T er. 



1888. Humidity and cloud excessive in January and February, 

 and deficient thereafter ; rain somewhat excessive in February, but 

 deficient in the other months. Conditions in January and February 

 decidedly favourable to the parasite. Outturn rose very slightly. 



North-west Provinces and Oudh. 



1875. Humidity excessive in February, and deficient in March 

 and April; no data for cloud; rain normal in January, excessive 

 in February, and deficient in March and April. Excessive humidity 

 and rain in February favourable to the fungus, but subsequent dry- 

 ness unfavourable to further development. Outturn rose. 



1876. Humidity deficient throughout ; no data for cloud ; rain 

 deficient, except in March, when it was excessive. Conditions on 

 the whole not favourable to the fungus. Outturn good. 



1877. Humidity excessive in all months ; cloud also, especially 

 in January, March and April ; rain excessive in January, February 

 and March, and normal in April. Conditions very favourable to 

 the fungus. Outturn fell, whilst we ought to have expected a good 

 outturn. 



1878. Humidity excessive in all months but March ; cloud the 

 same ; rain excessive in January, but deficient in February and 

 March, especially in the latter month. Conditions favourable to 

 both host and parasite ; but the outturn was very poor. 



1879. Humidity deficient in all months, especially April; cloud 

 normal in January, and excessive in February and March ; rain 

 deficient throughout, especially in February. Cloud was favourable 

 to the fungus, but rain unfavourable. The deficiency of humidity 

 and rain generally was unfavourable to the well-being of the host- 



