Question: What does the drop in `一、` mean?

![enter image description here](https://i.stack.imgur.com/41gLs.jpg)

Answer: 
It'a punctuation, which does not exist in English, and I don't know its English name.

In Chinese it's called `顿号` (dun4 hao4). It is usually used between listing of things (or verb, or adjectives ... I don't know the grammar term, who can help me please edit the post):

```
屋子里有桌子、椅子、凳子。

```

Usually in English, comma would be used.

In your example, it is just used a symbol separating the listing number and the title, which is not related to the use I mentioned above. This is common when Chinese numbers are used. The punctuation itself does not carry actual meaning.
While we're on this topic, you should also get used to:

《》 are equivalent title marks

那部电影的名字是《红高粱》: The title of that movie is Hong Gao Liang (Red Sorghum).

『...』 are quotation marks. 

If you're reading verticle text, use this as quotation marks:

﹁

.
.
.

﹂