EELWOKMS. 221 



effect both in checldug the disease, and throwing the 

 crop into lasting good growth. This was apphed early 

 in April, Sulphate of iron, at the rate of 2 cwt. the 

 acre, also answered well, though not so markedly in 

 pushing on good growth of the second crop. 



The above notes give some of the main points 

 regarding Stem Eelworm attack in Britain, taken 

 mainly from observations placed in my hands by my 

 contributors ; and besides our own observations, I 

 have to mention, with most hearty thanks, the con- 

 stant and invaluable assistance I have received in my 

 researches, from their commencement in 1886, from 

 Dr. J, Eitzema Bos, Prof, at the State Agricultural 

 College, Wageningen, Netherlands. To his identifi- 

 cation of specimens I have repeatedly owed the cer- 

 tainty as to the nature of the Tylenchus, or other 

 Eelworm infestations of less hurtful nature present, 

 which could only be trustworthily given b}^ a specialist. 

 "Without this assistance it would have been impos- 

 sible for me to work the subject forward, and I beg to 

 offer my sincere thanks and full acknowledgment of 

 his valuable and never-failing aid.* 



Fig. 160 (p. 222) gives a few examples of an order 

 not of insects, but of creatures so much resembling: 

 insects in their larval stage, both in appearance and 

 habits, that they are often taken for insect infestations, 

 and one name by which they are known is that of 

 " False Wireworms." These Julus worms, or Snake 

 Millepedes, belong, like the well-known Centipedes, to 

 the order Myriapoda (or " many-footed "), very nearly 



* For details of the liiBtory of the Tijlcnchua deva>itatrix, together 

 ■with excellent plates, see ' L'An^'uillule de la Tige (Tijlcnchu!^ devas- 

 tutrix),' par Dr. J. Eitzema Bos, Prof. al'Institut Agricolc de I'Etat i 

 Wageningen, Haarlem, pt. I. 1B88, pt. II. I88y. Also, by the same 

 writer, 'Annotations, deuxienie series,' Haarlem, 1801, this being a 

 most useful addition, jiractically as well as scientitically, embodying 

 much information on our British as well as Continental attacks. 



My own records of observation arc contained in my Annual 

 Ileports on Injurious Insects from 1886 to 1890, being the 10th to- 

 14th Reports, inclusive. 



