PAET FIRST 
INTRODUCTION 
This “Introduction” was first printed as a separate pamphlet by the Cam¬ 
bridge (England) University Press, and was dated January 30, 1901. This second 
edition is a reprint of the first, and the principal change introduced consists in the 
mode of reference to the Chapters on various subjects which, instead of being 
distributed among the items of the “ List ” of my publications (an arrangement 
that I had announced in the Prospectus of my “Record” published in June, 
1901), appear now collected in Part II. The reason for this change will be found 
explained in the Preface of that Part. 
The items of the “ List ” of my publications, which will form Part Third of 
this “ Record,” are generally referred to in Parts I and II by the mere quotation 
of the number and date of the “ List,” which are printed in heavy-faced type. By 
means of this arrangement the papers required will be easily found, and the cum¬ 
bersome repetition of their headings avoided. 
My entomological career may be divided into three distinct 
periods, dependent on my places of residence during each of them. 
I WORK IN ST. PETERSBURG (1854-1856) 
Born in St. Petersburg on the twenty-first of August, 1828, I 
began at the early age of eleven to take an interest in entomology. 
It was during a temporary residence with my mother in Baden- 
Baden (1838-1839) that I met a young Russian, Mr. Schatiloff, 
who gave me my first instruction in collecting Coleoptera. 
Joseph Nikolaievitch Schatiloff (1824-1890), a Russian nobleman, four years 
older than myself, had been initiated into the study of entomology by the Italian 
naturalist and traveller Gaetano Osculati , in whose villa near Monza in Lombardy 
he and his father spent the autumn of 1838. (The Diptera collected by Oscu¬ 
lati in South America have been described by Rondani in the Nuov. Ann. Sci. Nat., 
Bologna, 1850.) Schatiloff devoted himself later to general zoology, and especially 
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