PAUL LEVERKUHN, M.D. 205 
Austria ; Gadamer for the melancholy plains of far Sweden; 
Hagerup for the snowy camps of Greenland; Brusina for 
the rich Slavonian morasses; Mojsisovics for those of 
Southern Hungary; Baron Droste for the poetical island of 
Barkum ; and the long company of untiring explorers of the 
empire of India: Edward Blyth, W. E. Brooks, B. H. 
Hodgson, John Gould, T. C. Terdon, Przwalski, Stoliczka, 
and many others. : 
I must say for my excuse that in this short article, written 
in haste at a distant point of Bulgaria, without any books, 
and only from memory, by no means all those are enumer- 
ated who are represented in my gallery; and on the other 
hand, that there are many stars of whom either no portrait 
exists, such as Gilbert White of Selborne, or who are not 
yet represented in my collection, as for example many 
American authors. I should be very glad indeed if any of 
my transatlantic brethren would, when reading this modest 
memoir, fill up the gap. 
At the end I give a list of all my portraits, except those 
contained in Anatol Bogdanow’s large work, Scriptores 
Rerum Naturalium Rossici, printed for private circulation, 
in the Russian language, in which not less than 300 Russian 
naturalists figure. 
