viii 
CHRISTMAS LECTURES. 
ROYAL INSTITUTION OF GREAT 
BRITAIN. 
ALBEMARLE STREET, PICCADILLY, W. 
Prof. Strvanus P. Tuomreson, D.Sc., F.R.S., will, on Tuesday next 
(December 29), at Three o'clock, begin a Course of Six Lectures (adapted to 
aJuvenile Auditory), on ‘Light, Visible and Invisible” (experimentally 
illustrated), 
Subscription (for Non-Members) to this Course, One Guinea (Children 
under Sixteen, Half-a-Guinea); to all the Courses in the Season, Two 
Guineas. 
Tickets may now be obtained at the Institution. 
THE ELECTRICAL 
AND 
GENERAL ENGINEERING COLLEGE, 
AND 
SCHOOL OF SCIENCE. 
PENYWERN HOUSE, 2 and 4, PENYWERN 
EARL’S COURT, S.W. 
Principat—G. W. pE TUNZELMANN, B.Sc., M.I.E.E. 
SEnior-INsTRUCTOR—C. CAPITO, M.I.E.E., M.I.M E. 
Laboratories, Dynamo Room, Steam Engine, Engineering Workshop 
with Machine Tools, Pattern Shop, &c. " 
The College provides a Training for Electrical, Mechanical, Civil, and 
Mining Engineers, for Science Students in Mathematics, Physics, Chem- 
istry, Biology, Geology, and Mineralogy, and Preliminary Training for 
Students entering Cooper's Hill and the Central Institution. 
ROAD, 
VICTORIA UNIVERSITY. 
THE YORKSHIRE COLLEGE, LEEDS. 
DEPARTMENT OF SCIENCE, TECHNOLOGY, AND ARTS. 
The next Term begins Tuesday, January 12. Prospectus (post free) from 
the REGISTRAR. 
THE YORKSHIRE COLLEGE, LEEDS. 
ASSISTANT Required in the DEPARTMENT of AGRICULTURE, 
with ability to help in the Superintendence of Demonstration Plots, Salary 
at the rate of £150 a year. The Engagement will be for Three Months 
certain, with power of renewal. 
Applications will be received by the Recisrrar of the College, up to 
January 9. 
THE DEA CHER S*  GUseep 
74 GOWER STREET, W.G. * 
REGISTRY DEPARTMENT FOR MEN. 
SCHOLASTIC AGENCY WORK at lowest charges to cover expenses. 
Registrar—W. H. Fricker, M.A., who attends daily (3 to 5 p.m. at 
present) except Thursdays. 
OUNDLE SCHOOL. 
WANTED, for next Term, a Skilled Workman as WORKSHOP 
INSTRUCTOR ; one who can take charge of a Steam-engine and Small 
Dynamo Plant essential. To a suitable man good wages will be paid. 
‘Apply to the HEap Masrer, Oundle School, Northamptonshire. 
OPTICAL & SCIENTIFIC INSTRUMENTS. 
Spectrometers, Spectroscopes, Goniometers, Cathetometers, Optical 
Benches, &c., &c. Instruments for special purposes constructed to Clients’ 
own designs. Price List on application. 
W. WILSON (formerly Foreman at Messrs. ELLIOTT BRos.), 
56 Crogsland Road, Chalk Farm, London, N.W. 
MANUFACTURER OF 
ELECTRICAL & PHYSICAL 
INSTRUMENTS, 
Yj 44 Hatton Garden, London. 
NJ : Catalogues Free. 
THE MOST NUTRITIOUS COCOA. 
EPPS’S 
GRATEFUL—COMFORT ING. 
COCOA 
WITH FULL NATURAL FLAVOUR. 
NATGORE 
[ DEcEMBER 24, 1896 
tHE “2 NaSOMIO LO GES at; 
AN ILLUSTRATED JOURNAL OF GENERAL ENTOMOLOGY, 
Edited by RicHarp Sourtn, F.E.S., 
With the Assistance of 
Rosert ADKIN, F.E.S. Martin Jacosy, F.E.S. 
T R. Bitvurs, F.E.S. J. H. Leecn, B.A., F.L.S., F.E.S. 
W. Lucas Distant, F.E.S., &c. Dr. D. Suarp, F.R.S., F.E.S. &c. 
Epwarp A. Fircu, F.L.S., F.E.S. | G. H. VERRALL, F.E.S. 
F, W. Frouawk, F.E.S. W. Warren, M.A., F.E.S. 
W. F. Kirsy, F.E.S. 
Founded by the late Edward Newman in 1840, this Journal has been 
the popular organ of British Entomologists since 1864. Its contents deal 
chiefly with the home fauna, but there are frequent articlesand notes on 
matters of interest pertaining to the Entomology of various parts of the world. 
Published on the first of each month. Price 6d. Subscription, 6s. per 
annum post free to any country. 
London: WEST, NEWMAN, & CO., 54 Hatton Garden, E.C. 
THE ZOOLOGIST. 
A MONTHLY MAGAZINE OF NATURAL HISTORY, 
Edited by W. L. Disrant, F.E.S., &c., contains— 
Original Articles by well-known naturalists in every branch of zoology ; 
habits of animals; arrival and departure of migratory birds; occurrence of 
rare birds ; distribution and migration of British fresh-water fish ; new or 
rare marine fish; local aquaria; British reptiles; British land and fresh- 
water mollusca, with remarks on the haunts and habits of the species ; and 
other matters of general interest to those who delight in natural history. 
Reports of the Linnean, Zoological, and Entomological Societies. Reviews 
of natural history books. Occasional translations from foreign zoological 
journals of important and interesting articles in various branches of Zoology 
There are occasional woodcuts. 
SIMPKIN, MARSHALL, & CO., Lrp., Stationer’s Hall Court, E.C. 
THE ENTOMOLOGISTS’ MONTHLY 
MAGAZINE. 
Price Sixpence, Monthly. 
Edited by C. G. Barrett, G. C. CHampion, F.Z.S., J. W. DouGtas, 
W. W. Fow ter, M.A., F.L.S., R. McLacuvan, F.R.S., E. SAUNDERS, 
F.L.S., and 
Lorp Wa tsINnGHAM, M.A., LL.D., F.R.S. 
This Magazine, commenced in 1864, contains standard articles and notes 
on all subjects connected with Entomology, and especially on the Insects of 
the British Isles. 
Subscription—Six Shillings per Annum, post free. 
GURNEY & JACKSON (Mr. Van Voorst's Successors), 
1 Paternoster Row. 
London : 
NORTH BRITISH AGRICULTURIST, 
the Chief Agricultural Journal in Scotland, circulates extensively among 
Landowners, Farmers, Resident agents, and others interested in the 
management of land throughout the United Kingdom. 
The AGRICULTURIST is published every Wednesday afternoon in time 
for the Evening Mails, and contains Reports of all the principal British and 
Irish Markets of the week. 
The special attention of Land Agents is directed to the AGRICUL- 
TURIST as one of the best existing Papers for Advertising Farms to be Let, 
and Estates for Sale. 
Advertisers addressing themselves to Farmers will find the AGRICUL- 
TURIST a first-class medium for reaching that Class. 
Price 3@. By Post 34d. Annual Subscription, payable in advance, 14s. 
Offices—377 High Street, Edinburgh, and 145 Queen Victoria Street, 
London, E.C. Money Orders payable to C. and R. ANDERSON. 
HOLLOWAY’S PILLS 
CURE 
Biliousness, Sick Headache, Indigestion 
and all Internal Complaints. 
CAN BE TAKEN BY THE MOST DELICATE 
Holloway’s Pills and Ointment may be obtained of 
all Medicine Vendors. 
