THE BATRACHIA OF KALM'S "EN RESA TIL 

 NORRA AMERICA." 



BY SAMUEL GARMAN. 



In the history of the North American frogs there is fre- 

 quent mention of Kahn's references to them in his "Travels 

 into North America." For various reasons a considerable 

 amount of uncertainty has arisen concerning what this au- 

 thor really added to our knowledge of the different species. 

 To throw light on the matter it was necessary to consult 

 both the original and the subsequent editions of the Swed- 

 ish traveler's work. On account of the rarity of copies of 

 the book, and for the convenience of those who may not have 

 access to it, the references are fully quoted, even though 

 in cases their scientific value may not be very apparent. 

 Five editions are now before me. The original is the 

 Swedish, a small octavo, published in Stockholm: Vol. i 

 in 1753, Vol. ii in 1756, and Vol. iii in 1761. The sec- 

 ond is a translation into German by J. A. Murray, an oc- 

 tavo, printed at Gottiugen : Vol. i in 1754, Vol. ii in 1757, 

 and Vol. iii in 1764. The third is J. R. Forster's English 

 translation, an octavo: Vol. i, Warrington, in 1770, and 

 Vols. II and in, London, in 1771. The fourth is a re- 

 print of Forster's translation, with modifications, in two 

 octavo volumes, also from London, 1772 ; and the fifth is a 

 two volume quarto edition, in Dutch, published at Utrecht 

 in 1772, the translator of which is much indebted to Fors- 

 ter. The German is by far the best of the translations. 

 Variations in the text, departures from the original, make 



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