Resource Information
A Recipe for Hoyer’s Mounting Medium

Ingredients:
Gum Arabic 15g
Chloral Hydrate 75g
Distilled Water 25ml
Glycerine 5ml

Equipment:
Funnel
Beaker
Glass Wool

Procedure:
1) Add gum to distilled water and mix well at room temperature. Let mixture stand for 1-2 days or until completely dissolved.
2) Add chloral hydrate and let mixture stand for a day or until completely dissolved.
3) Then add glycerine to mixture and mix well. Let the mixture stand for awhile to allow sediments to settle.
4) Filter mixture through glass wool using the funnel and vacuum system. Repeat filter process if necessary. Store in airtight and amber colored container.

Ingredients by George Komatsu
Procedure by Dick Tsuda