THE CANADIAN ENTOMOLOGIST. 45 



Ochsenheimer's 3rd Vol. bears date that year. Mr. Scudder has inad- 

 vertently copied this as 1st Vol., 1807, instead of 3rd Vol., 1816. So as 

 Dr. Hagen, in a note, says, " the Tentamen was not known to the chief 

 Lepidopterologist of his day for ten years or more after it was printed, 

 though he was in intimate communication with Hnbner, and that he did 

 not know it shows clearly that Hubner did not think it of importance 

 enough to be communicated to him." 



Herrich-Schaeffer, in different Regensburg pamphlets, 185 7-1 869, 

 states that he has bought all the plates, books and scientific material 

 belonging to Hubner, and will continue Hubner's works. He gives a list 

 of them, with dates of their original publication, and includes the Ver- 

 zeichniss bek. Schmett, and the Syst. Alph. Verz. (which is another 

 catalogue), but says not a word of the Tentamen, the best proof that 

 he did not regard it as a scientific publication. 



Dr. A. Speyer, Ent. Zeit. Stett., 1875, Vol. 36, p. 98, thus expresses 

 himself: " Grote swears by the priority principle and has vigorously 

 carried out the same, not only in regard to species, but to genera and 

 higher divisions. He has laid hold of a yet older catalogue of Hubner's 

 than the Verzeichniss in the Tentamen, &c. I have never met with the 

 Tentamen, which, according to Ochsenheimer, contains a plan of a system of 

 Lepidoptera, on a quarto sheet, and neither I presume have most of my 

 readers. I have therefore been obliged to pass no judgment on the right of 

 those generic names to supersede later ones chosen by Hubner himself or by 

 others y 



a 1 



The Tentamen is not recorded in the large yearly Index of all German 

 publications,"' as lam informed by Dr. Hagen, "published at Leipzig, which 

 Indexisregarded as the most correct existing." And the same distinguished 

 Entomologist also assures me that he himself " has most of the catalogues 

 of the libraries belonging to prominent Entomologists, and which have 

 been offered for sale during the past forty years, and the Tentamen is not 

 mentioned in one of them, not even in those of Zincken-Sommer, Char- 

 pentier and others who were contemporaries of Hubner and were pro- 

 minent and accomplished Lepidopterologists. These men and Ochsen- 

 heimer and Germar were the i peritis ' of their time and there is no 

 evidence that one of them had seen it ; and," adds Dr. Hagen, " a work 

 in nobody's hands, priirted for private purposes, cannot be considered as a 

 scientific publication."' 



So that this sheet, so far as appears, was known to German authors, 



