282 



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(128 p.) Jl 6, — . 

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Tafelerklärungen und 2 Texttafeln. Hrsg. von der Kgl. Preuß. Geolog. 



Landesanstalt. Hierzu 1 Atlas [Fol.] mit 27 Taf. Berlin, Simon Schropp- 



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— A. u. d. T. : Abhandlungen zur geologischen Specialkarte von Preußen 



und den Thüringischen Staaten^ 6. Bd. 3, Hft. 

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80. (22 p., 1 pi.) 

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p. 451— 459. 



II. Wissenschaftliche Mittheilimgen. 



1. über Ornithocheirus hilsensis Koken. 



By Dr. S. W. Will is ton, New Haven, Conn. 



eingeg". 27. Februar 18S6. 



We have a very trite saying in English, that »When you have no 

 case, abuse the plaintiff's attorney«, and perhaps it is to this spirit that 

 I am endebted for the very sharp sarcasm that Mr. Koken has directed 

 against me. Permit me, in return, to beg that Mr. Koken will not 

 lay the flattering unction to his soul that it is the importance of his 

 »Knochenfragment« that has called forth all this discussion, but the 

 importance, rather, of the error that he has made. I have nothing in 

 my previous communication to retract, nor anything to add, except to 

 emphasize the statement that »für Jemand, der diesen Theil des Ptero- 

 saurier-Skelets so wie die Phalanx eines carnivoren Dinosauriers in 

 natura gesehen hat, kein Zweifel über besagte Angelegenheit existiren 

 kann«. 



I do wish, however, to call the attention of those interested in the 

 subject, to some remarkable statements by Mr. Koken. I made no 

 reference whatever to any batrachian, but pointed out the hollowness 

 of the phalangial bones in Coelurus, Megadactylus (citing Cope's well- 

 known »Synopsis of the Extinct Batrachia, etc.«), Megalosavrus and 

 birds. Mr. Koken says »Herr Williston hätte also nicht nöthig ge- 

 habt, meine Aufmerksamkeit auf Vögel und Batrachierzu lenken«. 

 Was this a Lapsus, or is his ignorance of the Dinosauria so abysmal 

 as to think that the noted triassic Megadactylus Hitch. [Amphisaurus 

 and Afichisaurns Marsh) is a batrachian, because, for scoth, it was in- 



