Okay kiddo, so let me tell you about something called "historical bibliography of the China Inland Mission" in a way that even a 5-year-old like you can understand.
Imagine you have a lot of books in your room, and each book tells a story. Now, imagine that these books are very old, and they were written a long time ago. Some smart people are interested in learning about these old books and the stories they tell. These smart people are called "historians."
One group of books that historians are interested in is called the "China Inland Mission." This was a group of people who traveled to China a long time ago to share their religion with the people living there. They wrote down their experiences in books, and historians want to learn from these books to understand what life was like for these people so many years ago.
Now, imagine that all of these books are kept in a big library, and the librarian there has to keep track of all of the books, including the ones about the China Inland Mission. When a librarian does this, it is called "bibliography."
So, the "historical bibliography of the China Inland Mission" means that historians are studying all of the old books about these people who went to China a long time ago, and they want to make sure that they have a complete list of all the books, who wrote them, and what they are about. This helps them to understand and learn from these books so that they can tell others about the experiences of the China Inland Mission.