132 Indian Museum Notes. [Vol. 11. 



Another liquid called '' acicle phenique," or carbolic acid, has also 

 been employed for the same purpose in quan- 

 tities of 2U per cent, of the acid to 80 of 

 water. 

 Althouo-li the destructive qualities of the " acide phenique" 2kre Tiot 

 inferior to those of the " huile lonrde/' the latter has been preferred for 

 economical reasons, being a much cheaper article. 



The campaign at Zaghouan and the Fahs has now terminated, and, 



Successful termination of the although some of the gardens and vineyards 



Zaghouan cHmpnign. have Suffered owing to their close proximity 



to the surrounding bushy country, the operations have been conducted 



with success. 



It has been calculated that about 600 cubic metres of locusts have 

 been destroyed by traps in those sections. 



The destruction by ploughing up of lands, collection of eggs, and 

 burnino- of young locusts was also actively carried on at the proper time, 

 and it is believed that a large percentage of locusts were exterminated by 

 these precautionary measures. 



A careful observer of the habits of the locust during this campaign 



informed me that he had always noticed a 

 Columns led by adult locusts. . r p ,, ^ , ,, 



certain number or ruli-grown locusts on the 



batching grounds after the dej)arture of the large flights, and that when 



tbe migration of the young locusts commenced, the columns were usually 



under the leadership of the old insects. The fact of the young being 



guarded by full-grown and experienced locusts would account for their 



nearly always choosing the proper course leading towards cultivated or 



fertile lands. 



Several personal inspections of various sections in the north of Tunis 

 Energy and activity of ad- enables me to testify to the energetic and 

 ministration and troops. methodical measures adopted by the Admin- 



istration, and to the services rendered by the troops throughout the 

 Regency, to whose activity the work of destruction is mainly, if not 

 entirely, due. 



By entrusting the command of sections to European officers, aided 

 Discipline insured by military by a few of their own troops, order and dis- 

 command. cipline are ensured. The tactics are carried 



out with greater precision, and the natives required for the work of each 

 section are careful to obey orders when summoned to assist in the opt ra- 

 tions. 



