This document provides a summary of different bacterial cell morphologies that can be observed under a microscope, including gram positive and negative cocci and bacilli, as well as different bacterial shapes such as spiral, S-shape, and comma-shaped. It also describes the appearance of endospores from two specific bacteria, Clostridium tetani and Bacillus cereus, noting that C. tetani has drumstick-shaped endospores while B. cereus has bipolar endospores.