`` i have neglected you , i find , '' laurence said , in apology : it had not escaped his notice that junichiro had made extraordinary progress in his study of english , and had furthermore devoted himself with great attention to mastering not only aerial tactics , but learning as much as he could of all others as well : he had seen the boy make persistent overtures to the russian artillery-officers , in particular , and questioning any he found who could speak at least a little french .