Sentence:  But can Mr. Stovel conscientiously allow infant sprinkling to be scriptural baptism? and is this the ground on which he would receive pædobaptists to the Lord's table? If he does not, then, instead of going the whole length of free communion, with our pædobaptist friends, he <WSD>goes it alone</WSD>. 
Meaning of the word marked with <WSD> tags:  To do something alone or independently, especially something that is normally or better done in groups.