CATALOGUE OP ATTTHORS. 483 



Leg,, or Le C. — Le Conte (Major John), an American natural- 

 ist, and officer in the service of the United States. 



Author of various memoirs on Quadrupeds, Reptiles, &c,, published in the 

 Journal of the Academy of Natural Sciences of Philadelphia, and in the Annals 

 of the New York Lyceum. 



Lefebv. — Lefebvre (Alexander), a French naturalist. 



Has published in the Annales de Societe Linneevme, a description of several 

 new Insects captured by him in Sicily, and that of three Lepidoptera. 



Leguat (Fran9ois), a protcstant of Burgundy, who sought refuge 

 in Holland. 



" Voyages et Aventures de Fr. Leguat et de ses Compagnous," 2 vols. 12mo 

 London, 1720. They contain good figures of various animals. 



Leisler. 



Author of a Supplement to Bechstein's Birds of Germany. Hanau, 1812, 

 1813. 

 Lepel. — Lepelletier de Saint Fargeau (Amedec), a naturalist 

 of Paris. Author of 



" Monographic des Chrysis des Environs de Paris," in the Ann. du Mus. 

 d'Hist. Nat., No. 58. 



" Memoire sur les Araignees," in the Bulletin de la Societe Philomatique, 

 April, 1813, No. 67. 



" jNIonographia Tenthredinetarum Synonymia Extricata," 1 vol. 8vo. Paris, 

 1823. 



Jointly with M. de Serville, of the article on Insects in the tenth volume of 

 the Encyclopedie de Methodique. 



He has communicated to the Academic des Sciences, Observations on the 

 coition of dift'erent species of Yolucella, a genus of Dipterous Insects. 



Leske (N. G.), Professor at Leipsick, and subsequently at Marburg, 

 born 1752, died 1786. 



" Museum Leskeanum, Regnum Animale," 1 vol. 8vo, with coloured plates, 

 Lips. 1789. 



I also quote him for his enlarged edition of " Klein's Treatise on the Echi- 

 ni," 1 vol. 4to. Lips., 1778. 



Less. — Lesson (R. P.), naturalist, jointly Avith M. Garnot, of Du- 

 perrey's Expedition in the Coquille. 



These two naturalists have edited the Zoological part of the narrative of the 

 above expedition; that part is not yet completed. M. Lesson is also author 

 of the 



" Manuel deMammalogie," 1 vol. 12mo. Paris, 1827. 



" Manuel d'Oruithologie," 2 vols. 12mo. Paris, 1820. 



" Manuel de I'Histoire des Molusques et de leurs Coquilles," 2 vols. 12mo. 

 Paris, 1820. His 



" Histoire des Oiseaux Mouches," with excellent plates, now being published. 



Lesueur (C. a.), a French naturalist, from Havre, residing in 

 the United States. 



One of the draughtsmen who accompanied Baudin, and one of Pcron's 

 most efficient and zealous co-operators in Zoological researches. He has pub- 

 lished some Zoological Observations in the Bulletin des Sciences, and the 

 prospectus of a great work on the Medusae, accompanied by specimens of se- 

 veral of the plates. He has also furnished various papers for the Journal of 

 the Academy of Natural Sciences of Philadelphia, the Memoires du Mus. d'Hist. 

 Nat., &c. 



Leukard (F. S.), author of 



" Zoological Fragments," Helmstadt, 1819. 

 The Mollusca of the Voyage of Ruppel. 



