Light, colour, and vision
Our rough guess is there are 128,000 words in this book.
At a pace averaging 250 words per minute, this book will take 8 hours and 32 minutes to read. With a half hour per day, this will take 17 days to read.
How long will it take you?
This book will take an estimated to read at a reading speed averaging words per minute. With 30 minutes per day, this will take to read.
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Word Count
128,000 words, Guess
Page Count
512 pages
Identifiers
- Internet Archivelightcolourvisio0000legr
- Open LibraryOL26565150M
Classifications
- LCCQP475 .L473 1957
Subjects
Topics
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