Trilling

It was pretty close quarters, but I had conversed with her at such length during the nest-building time, that she knew my voice and soon began to answer me in low trillings — trillings that could scarcely be heard — and turn her head to look at me in a friendly way.

During the singing act these wing surfaces are moved rapidly on each other, producing the familiar strident trillings of midsummer.

Diametrically opposed rays of these stellate groups are of the same optical orientation and the twins are, therefore, trillings ( fig. 29 ).

Chrysoberyl is orthorhombic in symmetry. Like many orthorhombic minerals, it readily forms an intergrowth with two other individual crystals to make trillings with six sides or, at least, V-shaped twins.

In the embryonic stage, pseudohexagonal trillings resemble those of the post-embryonic stage (Figure 2D,E), and are 1 to 3 μm in diameter.

Every 67th lying-in woman has twins, every 5333rd has trillings, and only every 150,000th has fourlings.

this breed is prominent for its remarkable fecundity and yield of milk; as a rule, this goat litters once a year and drops 2 kids; occasionally trillings and fourlings.

About twins and trillings.