vi Contents. 
Page. 
z Art. XIX. Em of Shells from the Coast of Africa. zd AUGUSTUS 
290 
A. Govrp, M. 
AnT-XX. E on Meloesetus viisa, Natt. (Echinocactus, Torr. and 
CHER. 293 
Gr.) By J. E. Tescuem 
Arr. Lm Notice of "- um of Lingtstuls. By juried odiis 
M.D 294 
ART. XXIL, Notices of New ana of P Secs, ma TRA for 
297 
uniting several supposed distinct Species. By Francis Arc > 
Arrt. XXIII An Account of Two PERR A Trains of i ie Erratic 
Blocks, in Berkshire, Mass, with an Attempt at an Explanation of the Phe- 
nomena. d Prof. Henry D. Rogers and Prof. WirLrAw B. RoGER 
AnT. XXIV. Descriptions bd the Fishes of Lake Erie, the Ohio River, and 
their Tributaries. ByJarep P. Kinttanp, M.D. (Concluded from p. 276) 
Art. XXV. Anatomical Desi of the Animal of Littorina ms ME 
Lam. By Josern Leip 
ArT. EL Notice of a new Gouns of Plants of the Order azine By 
Asa G 
By Nicnotas MancELLvs Hentz, Tuscaloosa, Alabama. 
310 
330 
8 
Arr, hyn esce and Pures of the Trdiekies of the United Staten. 
352 
Arr. VII. On the dies Meuse of America. By J. E. Tae 
MACHER 370 
Arr. XXIX. Notice of ds Geological Position of the iden dt de Cas- 
toroides. Quest. By . James Ha LLL, Esq., one of the New York Mte 
"An ‘Audtocical DOCU of the same. By JEFFRIES Wenas N, M: D, 
Prof. Anat. and Phys. in Med. Dep. of Hampden and Sydney College. 
ArT. XXX. ON in Sand nim the Sahara Desert. T Joun Ba- 
402 
con, Jr. M 
AnT. XXXI. poate ini Mineralogical Fragments, By C. 7. lide 
M.D 405 
ArT. XXXIL On the Habits of Baltic Secale. From a velis uira 
D: 412 
to Dr. Storer. By J. B. FoasvTu, M. 
Art. XXXIII. Description of S eren vereris (ose-throatd Tanager) 
By SAMvEL Casor, e M.D 
Gorilla, a New Species of Orang from the Gaboon sane by Thomas S 
Savage, M. D., Corresp. Memb. Boston Soc. Nat. Hist deme dina the 
same. By JEFFRIES t— M. D. pee Prof. Anat. in Harvard Uni 
versity. ; 
Aut. XXXV. Desi ptions it Pies of the Kedidss of the United — 
- MancELLUS HENTZ ee ma. scien 
V.p 
- hah Description and Analysis of three Minerals "€ Lake See 
S aue By J. D. Waits 
erae "The x (its inept a Rasorial seul nota a Rapacius 
Bird. By Samven Cazor, M. 
490 
* 
. 443 
Art xxxvi Dissection of Scy brevipi jeune By s. Keenan, 
E ri 
