I have taken the liberty of writing you specially after I spoke to Profesor Braun and 

 Mr. Bouchinger. The latter does not know of my correspondence with you nor of my 

 studies on Cacti. 



I hope you will honor me with your reply, Sir and honorable colleague. You have my 

 deepest respects. 



<?dlh>dt 



± Weber 



Physician and Mayor in the corps of the French Army in Mexico. Chief of Service at the 

 hospotal in San Luis Potosi. 



Letter to Dr. Engelmann. 



St. Louis, Mo. 



Translation. M. Thurmann 



