SCIENCE AND INDUSTRY. 
(a) Places with no worm nests :— 
Central Tablelands—Oberon, Bathurst, Blayney. 
Riverina—Finley, Berrigan. 
(6) Places with under 10 per cent. of cows showing the presence of worm nests by manual palpa- 
tion:— - 
Upper North Coast—Bangalow. 
South Coast, [lawarra—Thirroul, Berry. 
Northern Tableland, New England—Tenterfield, Glen Innes. 
Southern Tablelands—Cooma, Queanbeyan, Goulburn, Yass. 
South-Western Slope—Temora, Junce, Wagga. 
Riverina—Leeton, Hay, Deniliquin, Culcairn. 
(c) Places with 10 to 20 per cent. infestation :— 
Upper North Coast—Murwillumbah, Casino. 
Middle North Coast—North Dorrigo. 
Hunter and Manning, Western—Scone. 
South Coast, Ilawarra—Wollongong. 
Northern Tableland, New England—Armidale. 
Central Tablelands—Orange. 
Riverina—Narrandera (10+8 per cent.), Corowa. 
(d) Places with 20 to 30 per cent. infestation :— 
Upper North Coast—Lismore, Mallanganee (29 per cent.). 
South-Western Slope—Albury. 
(e) Places with 30 to 40 per cent. infestation :— 
Upper North Coast—Ballina. 
Northern Tableland, New England—Inverell. 
North-Western Plains—Moree. 
(f) Places with 50 to 60 per cent. infestation :— 
North-Western Slope—Tamworth, Boggabri. 
North-Western Plains—Narrabri. 
(9) Places with 70 to 80 per cent. infestation :— 
Hunter and Manning. Northern Coastal—Kendall (76-9 per cent.). 
SUMMARY, 
High, cold (in winter), poorly-timbered country shows an absence of worm 
nests (e.g., Oberon, Bathurst, Blayney), or a small percentage of cows affected 
(e.g-, Tenterfield and Glen Innes, and Southern Tablelands). The coastal dis- 
tricts, both north and south, show wide variations, but in general higher infesta- 
tions have been found on the north coast than on the south, whilst the highest 
infestation met with anywhere, namely, 76.9 per cent., was found at Kendall. It 
is remarkable that whilst Bangalow shows only 4.9 per cent., Ballina, in the 
same district, shows 41 per cent. In some cases the presence of heavy timber 
and creeks in proximity to dairies seems to favour infestation. The dry 
western type of country shows heavy infestation in such places as Moree, Nar- 
rabri, Dubbo, and Mudgee. Somewhat higher and cooler climates of similar 
character may also yield high infestations, as at Inverell and Tamworth. When 
these same types of country are examined further south, infestation is in 
general much less; thus, on the south-western slopes, the infestation is under 
10 per cent., except at Albury, where it was 22.4 per cent.; in the Riverina two 
towns showed an absence of worm nests, four had under 10 per cent. of infesta- 
_ tion, Narrandera 10.8, and Corowa 14.3 per cent. It would, therefore, appear 
that the dry western type of country, whether on the slopes. or the inland 
plains, and the moister coastal climate, both offer better facilities for worm-nest 
infestation in the north of the State than in the south. ‘To a certain extent 
the southern parts of these districts are cooler than the northern, Another 
explanation may possibly be in the distribution of the rainfall, summer rains 
being experienced in. the northern part of the State, and winter rains in the 
southern, 
