Volume IV investigates the issuing and care of arms, and then shows just which units of the `Company's Service' (i.e. the Bengal, Madras and Bombay Armies) and the `Royal Service' (i.e. the British Army) used the various natures and patterns of East India Company smallarms at successive periods. Another is that there are four armies to cover: those of Bengal, Madras and Bombay, plus the British Army in India (who often used East India Company smallarms).
Chapter 29. DISTRIBUTION AND CARE OF SMALLARMS
Chapter 33. BENGAL REGULAR CAVALRY
Chapter 34. MADRAS REGULAR CAVALRY
Chapter 35. BOMBAY REGULAR CAVALRY
Chapter 37. PIONEERS, SAPPERS AND MINERS
Chapter 38. LOCAL CORPS AND OTHER NON-REGULAR TROOPS
Chapter 39. THE PUNJAB IRREGULAR FORCE
Chapter 40. THE ROYAL SERVICE: BRITISH ARMY UNITS IN INDIA
Chapter 41. OTHER USERS OF EAST INDIA COMPANY SMALLARMS