What alterations does Aylmer perform on his laboratory in preparation for seclusion the birthmark?

Aylmer transforms his laboratory as follows to prepare for the birthmark removal procedure:

Sound Proofing: He installs sound-absorbing materials to block out any disturbing noises that could cause Georgiana anxiety or interfere with the procedure's success.

Temperature Control: He equips the laboratory with a carefully regulated heating system to maintain the appropriate temperature and prevent any discomfort for Georgiana.

Lightening Control: He adjusts the lighting in the room to create a soothing, subdued ambiance that would help relax Georgiana and minimize her anxiety.

Privacy Measures: He takes precautions to ensure absolute privacy during the procedure, including locking all doors and windows to prevent any interruptions or distractions.

Aylmer's goal in making these alterations to his laboratory is to create an optimal environment that would be conducive to Georgiana's well-being and ensure the success of the birthmark removal.