summarizing a part from the attached book

Summarize the ” § XL.—Calculation of the Work required for Flight.” on pages 108-122 from this book:

https://s3-eu-west-1.amazonaws.com/bga-sg-archive/Books/BIRDFLIGHT%20AS%20THE%20BASIS%20OF%20AVIATION.pdf

– Include figures and equations

– The book has a messing figure, it is attached in the question