PLATE 2. A peach orchard near St. Catharines practically destroyed by the San José Scale, containing 10,000 trees, now neglected and left untreated. (Photo. Aug. 14, 1903.)

PLATE 4. An apple orchard belonging to John D. Wigle, Kingsville, sprayed with lime, sulphur and salt in early spring. Very few scales could be found at time of visit. (Aug. 27, 1903.)

PLATE 3. A large apple orchard near Kingsville very badly encrusted with San José Scale. The owner refused to treat the orchard himself, or to allow the township sprayer to do it for him. This orchard is now a menace to the

neighboring ones. (Photo. Aug. 27, 1903.)

ANNUAL ADDRESS OF THE PRESIDENT-Progress of Economic Entomology in Ontario:

'W. I OCHHEAD.

The Transmission of Yellow Fever by Mosquitoes L. O. HOWARD.

SECOND DAY'S SESSION

Insects of the Season: W. LOCHHEAD

Notes on the Season 1903 (Western Quebec): C. STEVENSON.

Recent Work in American Economic Entomology: L. O. HOWARD
A Menace to the Shade-trees of London, Ontario

Present condition of the San Jose Scale in Ontario : W. LOCHHEAD
The Great Leopard Moth C. J. S. BETHUNE

C. J. S. BETHUNE..

40

42

46

A Card System for Notes on Insects: A. F. WINN ...

47

Additions to the Syrphidae of the Province of Quebec : G. CHAGNON.
An interesting enemy of the Iris: ARTHUR GIBSON...
Basswood, or Linden, Insects: ARTHUR GIBSON...
Insects injurious to Ontario Crops in 1903: J. FLETCHER
The Food-habits of Hymenopterous Larvæ T. W. FYLES

48

49

50

62

71

A Key to the Insects affecting the Small Fruits: W. LOCHHEAD
Collecting at Light in Manitoba A. J. DENNIS

74

80

Fly-tormentors of New Ontario: T. D. JARVIS

82

Entomological Record, 1903: JAMES FLETCHER

85

Notes on injurious Insects of the Abitibi Region; T. D. JARVIS¦.
Hunting for Fossil Insects: S. H. SCUDDER