If a house number precedes the spelled-out name of the street, the former takes figures, in order readily to distinguish it from the name of the street:
127-1. He resides at 34 Tenth Avenue South.
If it is desirable to begin a sentence with a number, such number should be spelled out, and not expressed in figures:
128. Two thousand people met in the park.
BIBLE REFERENCES
As the forms of Bible references are very numerous we shall give only two, which, we think, represent the best modern usage:
129. Matt, iv, 4; 1 Cor. i, 29.
130. Gen. 2:3-6, 9; 3:17.
As the Roman numerals were formerly, and still are to some extent, followed by a period, this usage would give the following in the place of No. 129:
129-1. Matt. iv. 4; 1 Cor. i. 29
We think No. 129 the better style.