NARRATIVE OF PROGRESS OF WORK. 
59 
might be employed a< a professional collector to undertake work in 
the same manner as that done by Fritz Wagner in Vienna. Dr. 
Heller recommended Mr. Edward Schopfer, who was at once engaged. 
Although at the date of the first visit to him the sea><>n was already 
considerably advanced (July 7), Mr. Schopfer had rearing cages in 
operation in his rooms, and in these cages were a number of nearly 
fall-grown larva' of the gipsy moth. lie knew the localities about 
Dresden where these insects were to be found, and at once began 
sending specimens to Boston. The well-known Forest Academy at 
Tharaiidt. near Dresden, was visited, and Prof. Arnold Jacobi and his 
assistant, Mr. W. Barf, were interested and promised assistance, 
especially in the matter of sending specimens of ( '<i(<>xn,, t <i sycophanta 
(see PI. I, frontispiece) and C. unju'isttor. Other trips were made 
in the vicinity of Dresden, and then the journey was resumed to 
Zurich, where, through the kindness of Dr. Herbert Ilaviland Field, 
director of the Concilium Bibliographicuin Zoologieum, the writer 
met Miss Marie EU&hl, editor of the Societas Entomologica. a very 
well-posted entomologist, especially on matters relating to Lepidop- 
tera, who had and has a large correspondence throughout northern 
Germany. She was engaged as the official agent of the investigation 
for that part of Germany and was able, through her own work and that 
of her correspondents, t«> -end a large amount of material to Boston 
before the close of the sejison of \\H)"y, and has since continued the 
work. 
From Zurich the trip was resumed to Paris, where some time W8S 
spent in interviewing Dr. Paul Marchal. the entomologist of the 
agricultural school conducted under the mini-try of agriculture, and 
other entomologists, and in visiting the scientific societies for the pur- 
pose of interesting naturalists in the work. Many trips were taken 
to towns around Paris in search of the pupa? of the gipsy moth and to 
visit local collectors in search of information, after which the return 
journey was made to America. 
The result of this initial trip was to demonstrate that it is an easy 
mattei and a comparatively inexpensive one to import certain of the 
parasites of both the gipsy moth and the brown-tail moth in living 
condition into the United States. The most important part of the 
European range of the two species was visited, and the entomologists 
were organized into an active body of assistants. 
Mention has already been made of the number of boxes sent in by 
Dr. Leonardi from Sardinia. Ten boxes were shipped by Fritz Wag- 
ner from Vienna, 47 boxes from Schopfer in Dresden, and 3G from 
Miss Ivuhl in Zurich, all of these containing parasitized larva* or pupae 
of the gipsy moth or brown-tail moth. 
Acting upon Prof. Jablonowski's observations concerning the 
existence of parasites in the wintering nests of the brown-tail moth, 
