how do suttan's observations about chromosome number support the chromosome theory of inheritance?
Do you mean Sutton?
Since this is not my area of expertise, I searched Google under the key words "Sutton chromosome" to get these possible sources:
http://www.genomenewsnetwork.org/resources/timeline/1902_Boveri_Sutton.php
http://www.genetics.org/cgi/content/full/160/1/1
http://en.wikipedia.org/wiki/Walter_Sutton
http://www.esp.org/foundations/genetics/classical/holdings/s/wss-03.pdf
http://books.google.com/books?id=O_-jPuVdo08C&pg=PA80&lpg=PA80&dq=sutton+chromosome&source=web&ots=NzvL_J1S3g&sig=IUZy8m0KpBEat5chT3hzTiqCMqw
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.