um (caul) 416

XXXVII. Fig. 1.--Tuberculosis of sirloin and porterhouse cuts
of beef. Fig. 2.--Tuberculosis of pleura of cow,
so-called "pearly disease" 416

XXXVIII. Tuberculosis of cow's udder 416

XXXIX. Actinomycosis 450

XL. Actinomycosis of the jaw 450

XLI. Actinomycosis of the lungs 450

XLII. Section of muscle from a blackleg swelling 464

XLIII. Necrotic stomatitis (calf diphtheria) 464

XLIV. Normal spleen and spleen affected by Texas fever 504

XLV. Texas fever 504

XLVI. The cattle tick (_Margaropus annulatus_), the carrier of
Texas fever 504

XLVII. The cattle tick (_Margaropus annulatus_) 504

XLVIII. Portion of a steer's hide showing the Texas fever tick
(_Margaropus annulatus_) 504

XLIX. Fig. 1.--Tick-infested steer. Fig. 2.--Dipping cattle
to kill ticks 504

L. Facsimile of poster comparing ticky and tick-free cattle 504

TEXT FIGURES.

FIG.
1. Hornfly (_Haematobia serrata_) in resting position 504

2. Hornflies (_Haematobia serrata_) on cow horn 505

3. Buffalo gnat 506

4. Screw worm (larva of _Chrysomyia macellaria_) 506

5. Screw-worm fly (_Chrysomyia macellaria_) 507

6. The warble fly (_Hypoderma lineata_) 508

7. Short-nosed blue louse (_Haematopinus eurysternus_) of cattle 512

8. Long-nosed blue louse (_Haematopinus vituli_) of cattle 512

9. Red louse (_Trichodectes scalaris_) of cattle 513

10. Egg of short-nosed blue louse (_Haematopinus eurysternus_)
attached to a hair 513

11. Mite which causes psoroptic scab of sheep 514

12. Portion of the wall of the first stomach with conical flukes
(_Paramphistomum cervi_) attached