The directors of a bank or trust company may declare dividends on common or preferred stock of so much of the net profits of the corporation as they shall judge expedient; but the corporation shall, before the declaration of a dividend on common stock from the net profits, carry 50% of its net profits of the preceding period for which the dividend is paid to its surplus fund until the same shall amount to 50% of its capital stock; and thereafter shall carry 25% of its net profits of the preceding period for which the dividend is paid to its surplus fund until the same shall amount to 100% of its capital stock.

32 Del. Laws, c. 103, § ?19; 38 Del. Laws, c. 93, § ?1(8); 38 Del. Laws, c. 94, § ?28; Code 1935, §§ ?2307, 2397; 5 Del. C. 1953, § ?748; 60 Del. Laws, c. 458, § ?1;