Feb. '08] JOURNAL OP ECONOMIC ENTOMOLOGY 55 



bulletin 72, Bureau of Entomology, U. S. Department of Agriculture, 

 page 20. Much additional data has been obtained since the publica- 

 tion of that bulletin. The work is being continued and further 

 results will be recorded from time to time. 



In discussing these papers Mr. Hooker called attention to the lan- 

 tern slides exhibited by Mr. Cotton, which showed the large number 

 of eggs deposited by the North American Fever Tick. This holds 

 true with all Ixodid ticks, as they literally manufacture eggs from 

 the blood with which they become engorged. Comparatively few of 

 the seed ticks find a host, the majority dying from starvation, other- 

 wise all animal life would be covered with ticks. The largest ticks 

 belong to the genus AmUyomma. The gulf coast tick, Amhlyomma 

 maculatum, is the largest found in this country and when fully en- 

 gorged the female measures three fourth of an inch in length. He 

 had counted 11,265 eggs that had been deposited by a single tick of 

 this species. The bont tick, Amblyomma liehraeum, of South Africa 

 reaches an inch in length when fully engorged and Prof. Lounsbury 

 estimates that a single female will deposit 20,000 eggs. 



Mr. Sherman called attention to the excellent work that is being 

 done in North Carolina by the state veterinarian, Dr. Butler. By 

 utilizing the known facts concerning the cattle tick, twenty counties 

 had been freed from quarantine. 



Mr. J. L. Phillips remarked that conditions in Virginia are quite 

 similar to those in North Carolina and that the quarantine line is 

 being pushed south very rapidly. 



Mr. W. D. Hunter testified to the valuable work that is being done 

 by Dr. Butler in North Carolina, but called attention to the delicate 

 equilibrium in which this species exists in the northern range. The 

 problem is more difficult further south, as in Texas, where the ticks 

 persist all winter. 



Dr. Howard remarked that the Texas ^cattle tick is a tropical and 

 lower austral species and that it can undoubtedly be controlled more 

 easily when outside its normal range. 



Mr. Sherman said that probably the results would be more slowly 

 accomplished in the southern part of the state, nevertheless he con- 

 sidered that the results secured were exceedingly encouraging. 



A paper was presented by Mr. Sanderson : 



