32 THE NAUTILUS. 



enberger was attached to the naval rendezvous in Philadelphia. 

 From 1843, he was Superintendent of the United States Naval Hos- 

 pital at Brooklyn, and, during his term of service there, organized 

 the Naval Laboratory, for supplying the service with pure drugs. 

 He was again Fleet Surgeon of the East India Squadron from 1847 

 to 1850 ; Fleet Surgeon of the Pacific Squadron from 1854 to 1857, 

 and of the Mediterranean Squadron from August, I860, to July, 

 1861, having served in the intervals between cruises at Philadelphia. 



In 1871, he was commissioned Medical Director on the retired 

 list, with the relative rank of Commodore. 



Dr. Rtischenberger has been best known in Philadelphia, per- 

 haps, for his scientific labors, and particularly for his efforts in be- 

 half of the Academy of Natural Sciences, which bestowed on him 

 the highest honors within its gift. 



He was elected Vice-President of the Academy in January, 1869, 

 and President in December of the same year, serving in the latter 

 office until 1881, when he was succeeded by Dr. Joseph Leidy. At 

 the time of his death he was oue of the curators, and Director of the 

 Concbological Section. 



Dr. Ruschenberger won considerable reputation by the results of 

 his scientific observations during his various cruises, which he pub- 

 lished at different times. Some of his works were : " Three Years 

 in the Pacific," "A Voyage Round the World," "Elements of 

 Natural History," " Lexicon of Terms Used in Natural History," 

 " Notes and Commentaries During a Voyage to Brazil and China." 

 Besides these, he wrote "A Notice of the Origin, Progress and Pres- 

 ent Condition (1852) of the Academy of Natural Sciences of Phila- 

 delphia," and various other pamphlets. 



Dr. Ruschenberger's works on Natural History were among the 

 first American treatises on this subject, and were largely instrumen- 

 tal in creating an interest in zoology in this country. One of the 

 most eminent entomologists in America, in speaking of Dr. Rusch- 

 enberger, said that he had first learned the orders of insects from 

 Ruschenberger's Natural History. 



THREE NEW SPECIES OF MACOMA FROM THE GULF OF MEXICO. 



JiY WILLIAM H. DALL. 



Macoma limula, n. s. 



Shell small, long and narrow, moderately inflated, anterior end 

 rounded, longer ; the posterior end subrostrate, bent to the right ; 



