32 THE ENTOMOLOGIST, 



Chevreul said that M. Reiset had no intention of passing 

 himself off as the discoverer of the fact alluded to, but had 

 done Science a great service by instituting precise experi- 

 ments for the purpose of ascertaining at what depths, accord- 

 ing to the temperature, larvae would be found in the soil, and 

 this had not been done before. These experiment had been 

 carried on for upwards of a year, and M. Reiset had ascer- 

 tained that, while the thermometer stood at 15 degrees 

 below freezing-point in the air, the temperature of the soil at 

 a depth of fifty centimetres did not fall below zero ; this 

 happened, however, on an occasion when the ground was 

 entirely covered with snow. After these important experi- 

 ments M. Reiset had told agriculturists that they were utterly 

 mistaken if they trusted to frost for the preservation of their 

 crops from insects, and that they must exert themselves if 

 they wished to rid themselves of the impending scourge. In 

 this M. Reiset had done his duty, without raising any pre- 

 tensions to a discovery. Last autumn M. Reiset, knowing 

 that the white worm was still quite near the surface, caused 

 a field to be slightly ploughed and harrowed ; two women 

 followed the harrow with baskets, and collected 344 kilog. of 

 ■white worms, at a cost of 12 fr. per hectare (2|- acres). This 

 field produced an excellent crop, while that next to it, which 

 had been let alone, produced nothing. — Galignani. 



Captures near Huddersfield. — The following is a list of 

 my principal lepidopterous captures since the beginning of 

 July last. Those for which Sherwood Forest is given as the 

 locality were taken about the third week in September, when 

 I spent a few days in that famous neighbourhood for insects. 



Hepialus sylvinus. This species appears to occur perio- 

 dically here : this season it has been abundant throughout 

 the neighbourhood ; last year, although I searched well for 

 it, I failed to secure a single specimen. 



Nudaria mundana. Very common about old walls at 

 Grimescar. 



Liparis Salicis. Bred a fair number. I have never taken 

 this species here. 



Orgyia pudibunda. In the larva state, Sherwood Forest. 



O. gonostigraa. About a dozen larva?, beaten from oak 

 and birch in Sherwood Forest. 



p. antiqua. Cocoons spun up on oak, Sherwood Forest. 



