It is clear from Liebig's publications that he first regarded yeast as a lifeless, albuminoid mass; but, although later he considered they were living cells, he would never admit that fermentation was a physiological process, the chemical aspect being paramount in the mind of this distinguished investigator.
With its numerous palaces, substantial houses, broad streets, and spacious squares, Trent presents the aspect of a thoroughly Italian city, and its inhabitants (24,868 in 1900, including a garrison of over 2000 men) speak Italian only - it is the centre of the region called Italia Irredenta by fervent Italian patriots.
Nowhere is the region of eternal snow reached, and masses of foliage enhance the gentle aspect of the scenery and glorify it in autumn with tints of striking brilliancy.
The mosques with their cupolas and minarets, and houses built in Eastern fashion contrast curiously with the Renaissance style of most of the modern buildings, the medieval aspect of the castle and the quaint appearance of the Dutch houses still standing.
Increase in size appears sometimes to be accompanied by the development of a new layer of fibres, whereas a difference in the method of preparation may give to a layer which appeared homogeneous in one specimen a decidedly fibrous aspect in another.
By the end of 1914, the entrances of Scapa Flow had been adequately protected, facilities for carrying out all but the most serious repairs were installed, and Scapa Flow gradually assumed the aspect of a great naval station, which it retained to the end of the war.
We have the evidence of this in his own written words, as well as in a sketch which he drew to indicate the seat of his suffering to some physician with whom he was in correspondence, and again in the record of his physical aspect which is preserved by a portrait engraved on wood just after his death, from a drawing made no doubt not long before: in this portrait we see his shoulders already bent, the features somewhat gaunt, the old pride of the abundant locks shorn away.
Truncatum the flowers have a very different aspect from that of other Cacti, from the mouth of the tube being oblique and the segments all reflexed at the tip. The short separate pieces of which these plants are made up grow out of each other, so that the branches may be said to resemble leaves joined together endwise.
He was always conscious of some aspect of that skein, as with a buzzing in his head after dinner or supper he chatted or listened to conversation or read.
On the Volga about Kamyshin, where the valleys are excavated to a depth of 800 or 900 ft., giving quite a hilly aspect to the country.