General Hints
A silk hat should only be worn on appropriate occasions. Worn with a rough business suit, or on a picnic or mountain ramble, it is in the worst possible taste. It should appear only with frock coats, dress coats and a fine quality of cloth.
Felt or straw hats should be worn with short coats or business suits.
The mourning weed, conventionally speaking, is worn only on a silk hat; but there is no good reason why those who wish to wear mourning for lost friends should always be in dress of ceremony so to do.
Diamonds should not be worn during business hours by men who are obliged to stand behind counters or engage in any toil.
Business suits should never be worn to an evening party in the city, though in small country gatherings they might be permissible.
Even various styles of outing suits are allowable in some of the informal gatherings at summer resorts.
“Nice customs courtesy to great kings,” or to occasions.