A popular writer of stories for young people turns here to her own hobby, collecting sea shells, and gives us a delightful, practical and informative book. There's an immense amount of sound, scientific information here, presented at a level of first interest and inquiry into how shells are formed, how they grow, how the mollusks that inhabit them move and eat and protect themselves. Vital facts are introduced where pertinent, and even an adult, who has taken shells for granted, will find basic information here, never written down to a conscious level of childhood. A final section suggests how to go about making a shell collection. Marguerite Scott's illustrations expand the text data and supply an exquisite decorative note. A book for identification of many of the commonly found shells of our coasts.