2 1887] The Progress of Arachnology in America, 967 
first efforts was the editing, with valuable supplementary notes, 
of Hentz's writings, above mentioned. He afterwards (1875) 
4 published sundry notes in the AMERICAN NATURALIST on the cave 
_ spiders of Virginia, and described two species from Colorado as 
_ àn appendix to one of Thorell’s papers. In 1878 he published 
à popular elementary work on the “Structure and Habits of 
_ Spiders.” This was largely used in the preparation of articles 
_ which were printed in the Report of the Entomological Society 
_ of Ontario for 1879, and in the “Standard Natural History.” In 
_ 1882 he commenced a series of papers on the spiders of New 
_ England, and has already given us valuable monographs of the 
_ families Theridide (1882), Epeiridz (1884), and Lycosida (1885). 
_ He has in course of preparation papers on the other families of 
_ the same region. In these three papers he has described one 
and seventeen new species, divided among the three 
families as follows: Therididz, eighty-five; Epeiride, twelve; 
and Lycosidæ, twenty. This unusually large number results 
_ from the fact that previous workers had described species largely 
_ from the Southern States. 
: In 1875, Dr. Thorell, well known by his various works on 
_ European spiders as well as by various papers on the scorpions 
_ 4nd opiliones, published a short “ Notice of Some Spiders from 
3 r,” in which he described seven new species. Two years 
hter (1877) he published a second paper, on the “Araneæ col- 
_ Scted in Colorado in 1875 by A. S. Packard ;” twenty-six species. 
_ “described as new; this is almost the only paper that has yet 
3 pram on the spiders of the region west of the Mississippi 
__,, Rev. H. C. McCook has published, in the Proceedings of the 
: lphia Academy (1876-83), a series of interesting papers 
pie E Rabits of some of the web-building spiders; these in- 
use also the descriptions of some new species. 
S. H. Scudder, in 1877, and Dr. George Marx, in 1881, de- 
1S new species of Lycosidæ, with accounts of their nest- 
habits, 
ji 
: De the Peckhams, of Milwaukee, commenced the pub- ee , 
. Species are described, of which twenty-one are ec Sa ee 
ge. in 1886, Professor Atkinson, of Chapel Hill, N. C., in 
o » has described some new Mygalidæ, or ns, eas 
8 of new species of Attide, or jumping spiders; twenty- : 
