NovEMBER 19, 1897. ] 
tled Archives de Parasitologie, edited by Pro- 
fessor Raphael Blanchard, will be published at 
Paris. 
THE current number of Virchow’s Archiv 
is the 150th and is published fifty years after 
the establishment of the Archiv, in 1847. It 
contains a portrait of Virchow and two articles 
added to the long series contributed by him 
since he published seven in the first volume, 
fifty years ago. 
THE Open Court for the present month has 
as a frontispiece a portrait of Euler and pub- 
lishes some biographical notes on the great 
mathematician. Portraits of other mathe- 
maticians will be given in other numbers of the 
journal. 
Messrs. Hoventon, Mirriuin & Co. have 
published for the Appalachian Mountain Club, 
of Boston, a guide book to the region about the 
city, prepared by Mr. Edwin M. Bacon. It 
contains 410 pages, with four folding maps and 
150 illustrations. The opening chapter quotes 
President Eliot’s characterization of the country 
round about Boston as the most interesting his- 
torical region in the United States, and one of 
the most beautiful he had ever seen here or in 
Europe ; and his advice to the students is ‘to 
learn the whole region by heart.’ For this pur- 
pose the book, which pays special attention to 
the natural history of the region, will be a most 
useful guide. 
Ty a recent paper, published in the Transac- 
tions of the Edinburgh Field Naturalists’ and 
Microscopical Society, Mr. Symington Grieve 
brings the history of the Great Auk down to 
July 81st of this year, noting the new speci- 
mens of eggs which have come to light within 
the past few years as well as the changes that 
have taken place in the ownership of specimens. 
It appears that the highest price paid for an 
ege was 300 guineas by Sir Vauncey H. Crewe, 
while Mr. Rowland Ward gave 600 guineas for 
a skin and egg. The article is accompanied 
by five plates of mounted specimens, three of 
which are of special interest from the fact that 
they are from young individuals. 
AccorDIne to the Botanical Gazette the two 
important collections left by the late Dr. Ed- 
mund Russow, of the University of Dorpat, are 
SCIENCE. 
767 
to be sold. One isa collection of about 3,750 
fully prepared and well preserved microscopical 
preparations, including the original mounts 
used for the late owner’s classical investiga- 
tions. The seccnd collection is the Sphagnum 
collection, of which group Russow was known 
as one of the foremost students. It consists of 
314 fascicles and about 3,000-4,000 micro- 
scopical preparations, with outline sketches 
of the same, especially of the species that have 
been already worked up. There are, in addi- 
tion, 300 photographic lantern slides of locali- 
ties of the different sphagnums. Further in- 
formation regarding the collections may be 
obtained from Frau Professor Emma Russow, 
Schloss Str., 15, Dorpat, Russia. 
REUTER’S agency reports that at the head- 
quarters of the Russian Imperial Geographical 
Society, on the 27th inst., M. Sven Hedin, the 
celebrated Swedish traveler, delivered an ad- 
dress before a large and brilliant audience upon 
his recent journey across the Pamirs, Kash- 
garia and the Lob Nor. He started at the be- 
ginning of 1894 for the Pamir military post in 
Kashgaria, and ascended and mapped the 
glaciers of Mustagh Ata (20,000 feet). During 
the autumn he proceeded in the direction of 
Lake Teschil-Kul to explore it, and. also the 
Alid-Schur Mountain range. He returned to 
Kashgar to pass the winter, and spent the time 
in arranging the scientific material which he 
had collected. In February, 1895, M. Sven 
Hedin set out to cross the Takla Makhan des- 
ert, but was compelled to return to Kashgar. 
In December, 1895, he went by way of Khotan 
towards Lake Lob Nor, traversing a desert 300 
km. wide. During this journey which occupied 
four months and a half, M. Sven Hedin dis- 
covered the remains of two ancient towns and 
the ruins of Buddhist monuments. Proceeding 
as far as the Kiria Daria river he ascertained 
that this stream ran as far as 39° 30’N. He 
found in that region a tribe of half-savage shep- 
herds, unknown even to the Chinese. Pushing 
on to the Chinese town of Koreia, along the 
banks of the river Tarim, M. Syen Hedin 
reached the Chinese, or northern, part of Lake 
Lob Nor. From LobNor, in the spring of 1896, 
he came back to Kholan, and then returned to 
Kipa, in order to undertake a journey in north- 
