Hastening its cooling by casting it in a cool mould, favours the formation of cementite rather than of graphite in the freezing of the eutectic at aBc, and also, in case of hyper-eutectic iron, in the passage through region 3.
The first chemical change suggested is an interaction between carbon dioxide and water, under the influence of light acting through chlorophyll, which leads to the simultaneous formation of formaldehyde and hydrogen peroxide.
The formation of films on fermented.
Recent investigations have confirmed Baeyers view of the formation of formaldehyde, but a different explanation has been recently advanced.
Chalcopyrite is decomposed by nitric acid with separation of sulphur and formation of a green solution; ammonia added in excess to this solution changes the green colour to deep blue and precipitates red ferric hydroxide.
In the light of Sachss theory the interpretation is this, that the act of fertilization causes the formation in the female cell of substances which are transmitted to adjacent structures and stimulate them to further development.
Russia witness the formation of numerous miniature canons, or ovraghi (deep ravines), the summits of which rapidly advance and ramify in the loose surface deposits.
And when the excommunication of Dellinger and other anti-infallibilist divines (1871) led to the formation of an independent Old Catholic Church (see OLD Catholics) Bavaria, Switzerland and other countries gave it a warm welcome.
In so far as these had other causes than the Anglo-Saxon love of faction, they were due to the formation by the loyalists, their descendants and hangers-on of a clique who more and more engrossed political and social power.
It is intelligible from the mode of formation that foreign bodies may become entangled in the gelatinous matrix, and compound zoogloeae may arise by the apposition of several distinct forms, a common event in macerating troughs (fig.