22 ON EARLY CESTRUM, &c. IN HEIFERS. 
employer is certainly annoying, although it cannot excite dismay 
if a person acts consistently : but 1 conceive that the want of 
courtesy from a professional brother is both illiberal and impolitic, 
inasmuch as it tends to check the advancement of veterinary 
science and the promotion of good feelings. I am really sorry 
that so many favourable opportunities have been neglected, because 
they might have ended agreeably, and probably with mutual 
advantage. 
The mode in which our consultations ought to be regulated 
has been suggested by a preceding writer; and if my puny 
efforts should be contrasted with that gentleman’s just senti- 
ments and persuasive diction, they would sink into insignificance. 
But I am fully aware of the infirmities of my nature and the 
scantiness of my abilities, and cannot for one moment suppose 
that my feeble recommendation will be instrumental in establish- 
ing that unity of sentiment which is so necessary to ensure our 
success : perhaps, however, I may safely say, that if those veterina- 
rians who have advanced themselves in the profession by habits of 
industry and perseverance wish to gain the friendship and esteem 
of our more enlightened brethren, they must steadily pursue 
a liberal and honourable mode of conduct. If we firmly adhere 
to disinterestedness, and abandon those exclusive notions which 
are the characteristics of illiberality, we shall ultimately succeed 
in convincing our employers, and the public generally, that we 
are more actuated with a desire to alleviate the pain and save 
the lives of valuable animals, than the gratification of personal 
animosities or our own pecuniary advantage. 
I wish you. Messieurs Editors, and your readers a happy new 
year, and that your Journal may not lack plenty of those 
valuable practical essays which have frequently enriched its 
pages. May those members of our profession, who perhaps 
from supineness have not publicly shewn any desire to advance 
the progress of veterinary science, relinquish their taciturnity, 
and take the earliest opportunity of aiding your cause ! May 
our consultations become more numerous ! but let us resolve to 
govern them with a spirit of mutual forbearance, fellow-feeling, 
and concord. 
ON EARLY CESTRUM AND IMPREGNATION IN 
HEIFERS. 
By Mr. J. Gwynne, Welchpool. 
In the month of April 1833, a cow, the property of P. 
Corbet, Esq. of Leighton Hall, near this town, calved two fine 
calves, one of them an heifer, which was allowed to suck her dam 
for some months, and, when five months old, took the bull. In 
