47 



By Exchange. 



AMERICAN ANTIQUARIAN SOCIETY, Worcester. Proceedings of, Oct. 21, 1871. 

 No. 57. Svo pamph. 



NEW JERSEY HISTORICAL SOCIETY. Proceedings of. Vol. II. No. 4. 1871. 



NEW YOKK LYCEUM OF NATURAL HISTORY. Annals of. Vol. X., Nos. 4-5. 



PUBLISHERS. American Naturalist. Christian World. Gardner's Monthly." 

 Gloucester Telegraph. Haverhill Gazette.- Ipswich Chronicle. Essex County 

 Mercury. Lawrence American. Little Giant. Lynn Reporter. Lynn Transcript. 

 Medical and Surgical Reporter. Nation. Nature. Peabody Press. Sailors' Mag- 

 azine and Seamen's Friend. Salem Observer. Shoe and Leather Journal. Sothe- 

 ran's Catalogue. Western Lancet. 



ESSEX COUNTY SPIDERS. 



J. H. EMERTON exhibited his collection of spiders from 

 the neighborhood of Salem and gave a general account 

 of the classification of spiders, illustrated by sketches of 

 some of our common species. The collection contained 

 some eight hundred specimens, representing one hundred 

 and sixty species of the following suborders : 



Orbitelarise (round web spiders) 29 species. 

 Ketitelariae (net spiders) 33 u 



Tubitelarioe (tube spiders) 43 " 



Citigradae (wolf spiders) 19 " 



Saltigradre (jumping spiders) 20 " 

 Laterigradae (crab spiders) 36 " 



The Orbitelariaa were represented by the large black 

 and yellow Epeira riparia Hentz, one of our most con- 

 spicuous spiders which can hardly escape the notice of 

 any one who goes into the country in August, by Epeira 

 vulgaris, the broWn and gray spider, which spins round 

 webs everywhere about our yards and barns, Epeira tri- 

 folium, one of our largest JEpeiras, with round purple 

 abdomen marked with white spots, and the less familial- 

 species with thorny and odd shaped abdomens, Epeira 

 slellata and spinea. 



Among the Retitelariae were Theridion vulgare Hentz, 

 perhaps the most common of all our house spiders whose 

 webs occupy the corners of our rooms at all seasons, and 



