The image is a black and white photograph of a group of people working in a laboratory. There are four people in the photograph, three men and two women, all of whom appear to be medical professionals. The man on the left is a British Embassy doctor, Dr. Mackay (second from the right), and the woman on the right is a student. They are all working on a table with various tools and equipment.

In the center of the image, there is a man with a beard and a hat, who is holding a tool in his hand. He is standing in front of a table and appears to be working on something. On the right side, there are two other men, one of whom is standing and looking at the man with the tool. The other two men are standing behind the table, and they are also working on the table. The background is blurred, but it seems like they are in a room with a stone wall and a window. The photograph is accompanied by Chinese text, which likely provides information about the medical professionals and their work.