298 



THE YOUNG NATURALIST. 



printed for the purpose, is pinned at 

 the bottom, and the arrangement is 

 supposed. to be complete. The speci- 

 mens are then put in the space left, 

 sometimes the preserved larva and 

 pupa are added, and we have occa- 

 sionally seen an ichneumons or dip- 

 terous parasite pinned in also. This, 

 or some very similar method being 

 nearly universally adopted, we shall 

 take it as the ground work for our 

 remarks, and the first advice we would 

 give is that thread be used instead of 

 ruled lines for dividing the rows. 

 When once the lines are marked on 

 the paper, no alteration can be made, 

 without moving every insect, and re- 

 papering the drawers. No doubt it is 

 less trouble at the beginning, but like 

 most of trouble saving methods, it will 

 give more than it will save in the end. 

 ^ We also urge our readers to take plenty 

 of room. Do not on any consideration 

 crowd your rows together. You must 

 measure your drawers, and calculate 

 the space for each species, before you 

 begin, then if you find you can get 

 another one in by a little crushing, by 

 all means leave it out for the next 

 drawer. Nothing looks worse than to 

 see wing tips overlapping, or croAvcling 

 of any kind. But it is with regard to 

 specimens placed in the cabinet that 

 we think the greatest care should be 

 exercised. When a collector rears for 

 himself a fine series of an insect, and 

 fills his available space, he makes a 

 small x opposite the name in his ex- 

 change lists, and congratulates himself 

 that that out" is completed. Suppose 



! the collector in question lived in the 

 j North of England, and that the insect 

 ! was so common a species a s Fidon la 

 piniaria. Some time after, he is in L e 

 South of England, andlooiing tlirou; 1) 

 a friends collection he comes upon tJ is 

 species, of which both his own and his 

 friends series was marked complete, 

 i To his astonishment he finds that 

 | while the males of his specimens are 

 I black and white, those of his friend are 

 ' black and yellow, and on enquiry lear] is 

 '[ that to be the normal form of the 

 insect in the south. His Mend's 

 astonishment is equal to his own- 

 both had marked the species as com- 

 plete, and thus, though common with 

 both of them, they had never exchanged 

 specimens, and were ignorant of this 

 important difference between North 

 and South of England Piniari. 



(To be continued. J 



SPECIAL NOTICE. 



Our friends have had great trouble hitherto 

 in procuring the Young Naturalist through 

 a Bookseller: the firm who supplied the 

 trade at first being too far from the centre for 

 collectors to go to Walworth for odd copies of 

 a penny paper. We now have pleasure to 

 announce that we have arranged with 

 Messrs. John Kempster & Co., 

 St. Bride's Avenue, 



Fleet Street, 



London, E. C, 

 who will in future supply the trade ; and we 

 trust our readers will have no further difficulty 

 in procuring copies through a local Bookseller. 



NOTICES. 



The Young" Naturalist is published in 

 time to reach subscribers by Saturday morning 



