Chinese Seal on silk painting - what does it mean?
The Title is 江南春曉 pronounced Jiang Nan Chun Xiao

江 mean river, most used for Changjiang River in China: Asia longest and the world third longest river 
南 mean south or southern
春 mean spring
曉 mean morning or dawn

So 江南春曉 mean A Spring Morning in Southern China

The script beside the title is 己亥永秋逸之

己亥 is a kind of Chinese calendar to name the year, it cycle every 60 years, so it can mean 1059，1119，1179，1239，1299，1359，1419，1479，1539，1599，1659，1719，1779，1839，1899，1959，2019, if the painting is created in Qing dynasty (AD 1644–1911) it can mean any of the following year 1659，1719，1779，1839，1899  Click for More info

永 mean forever
秋 mean autumn
永秋 I am not sure but it can be the name of the painter.

逸之 is like Best Regards in English letter.

For the seal it contain two characters, on the left side it has 山 which mean mountain, I can't identify the character on the right.