
ee a aaa aaa a a a a aa a aa aaa 
wee tie A ü n 
ADVERTISEMENTS. t 

Fae t 
Horsford’s Acid Phosphate, 
HE phosphates of the system are 
F consumed with every effort, and 
exhaustion usually indicates a lack 
of supply. The Acid Phosphate 
supplies the phosphates, thereby 
relieving exhaustion, and increasing 
the capacity for labor. 
PLEASANT TO THE TASTE. 
rA N. ee hfa kist O., says: 
“ Decidedly beneficia haustion.” 
Dr. S. Newman, St. Louis says 
AN; pais Be o f great s service in ‘satay forms of 
exhaust 

Soca. pamphlet free. 
Rumford Chemical Werks, Providence, R. I. 
BEWARE OF SUBSTITUTES AND 
IMITATIOND, 
N :—Be sure the word ‘‘Horsford’s’’ i 
printed on the label. All others are piin 
Never sold in bulk, 

NORTH AMERICAN 
LICHENS 
In sets, including 15 to 20 of my new species. 
Very fine material. Just collected by 
WEW CALEINSG, 
147 California Avé., Chicago, Ill. 

Now Ready, Price x 
Tume Dr beng of the Trustees E the Australian 
m, Sydney. Volume II., Part I., of 
KOSTRALIAN LEPIDOPTERA 
THEIR TRANSFORMATIONS. By the late 
ALEXANDER ite ip ee SCOTT." With Il- 

Hae ET MORGAN and HELENA FORDE. 
aa ‘Revise by ARTHUR gov OLrLIFF and 
HELENA ‘ORD 
The work w n parts, each containin 
three Nee ca 7 sts te) plates, ao o7 — and 
only tho: se species o of which 
y arke 
fresh issue a Eer: | N Hya =e KE forming 
Volume I. of the k (London, an Voorst, 
nine colegen lenin), will shortly bé peP e for pur- 
has 
be obtained from KEGAN PAUL, 
TRENCH "T UBNER & CO., er Row Hill ; 
GURNEY & JACKSON, Li: ye iar and 
H. SOTHERAN & CO., Strand, Lon 
BEAUTIFUL GEODES. 
dreds of Fa piep i eats pe ns 

Robt. Ri idgway and ‘Prof. J.-A 
K. re fincas 
Naturalist and Taxidermist, Warsaw, Ill. 

Check-List of Canadian Plants. 
There has been published and is now offered for sale what is 
believed to be a complete list of the Phanogamous and Vascular Cryp- 
togamous Plants of Canada. 
The Catalogue of Canadian Plants issued 
by the Geological Survey of Canada has been used as a basis, but a 
large number of species discovered since it was published have been 
included in the list. 
Many genera, too, have been revised by specialists, 
and their revisions have been used in the preparation of the Check-List. 
Several additional species discovered last year (1890) are included. 
The price of the list is 50 cents per copy, 3 copies for $1.00. 
Address, 
JAS. M. MACOUN, 
Geological Survey, Ottawa, Canada. 
