The author in spys in petticoat describes harriet Tubman working as a spy during the civil war, what can be inferred about harriet Tubman's skills as a spy from this evidence

She was discrete, effective, and courageous in her work as a spy.

Explanation:

Harriet Tubman was very effective and courageous in her work as a spy. She was a nurse, who doubled as a spy. The spy worked led her to the Underground Railroad. This opportunity of working with the Underground Railroad granted Tubman intelligence to all the important rail and water routes in her territory.

She helped to free slaves who became loyal to her and were willing couriers in her spy work. At a time, she personally was at the forefront of some raids in South Carolina. Due to these involvements in spy work, she struggled financially and was eventually, denied pension.

Hariet Tubman's spy skills revealed she was strategic, wise and calculative.

Explanation:

The following can be inferred from Hariet Tubman's skill as a spy:

1. Her Position At The Underground Railroad:

Her work with the Underground Railroad helped her to get firsthhand information of all land and waterway transportation routes throughout the south. It helped her to map territory behind enemy lines for the Union. She utilized this opportunity very well which made her a successful spy for the Union.

2. Support from others:

Tubman enlisted the help of slaves and former slaves as scouts when she organized a vast spy ring for the Union. This was strategic. She trained these scouts who went on dangerous missions behind enemy lines.

Tubman and other former slaves became effective spies and the Confederates devalued their intelligence.

These scouts lived their lives as invisible people.

Harriet Tubman knew that quality of invisibility so well which became the basis for using ex-slaves as spies for the Union.

Information gathered from these Tubman's spies became known as “black dispatches."