If we measure the time from an instant at which the two are in the same phase the resultant disturbance is y=a sin i t+a sin 27rn2t =2a cos ir(n i - n 2)t sin ir(nl-t-n2)t, which may be regarded as a harmonic disturbance of frequency (ni+n2)/2 but with amplitude 2a cos 7r(n i - n 2)t slowly varying with the time.
Under the Isolation Hospitals Acts 1893 and 1901, a county council may provide for the establishment of isolation hospitals for the reception of patients suffering from infectious diseases on Hospi t a l s the application of any local authority within the county, or on the report of the medical officer of the county that hospital accommodation is necessary and has not been provided, or it may take over hospitals already provided by a local authority.
The aboriginal inhabitants collect a kind of tea called t`ien ch`a, or celestial tea, which looks like the leaves of a wild camellia, and has an earthy taste when infused.
The overflow sill or weir should be a masonry structure of rounded vertical section raised a foot or more above the waste-water course, in which case for a depth of t a ft.
Bet ore the tonic the same change between a and e constantly takes place; one finds in manuscripts enar, emor for anar, amor (the same extends even to the case of the tonic syllable, ten and sent from t a n t u in and 1 a n c t u m being far from rare), and, on the other hand, antre, arrar, for entre, errar.
