plate no. 5128

The Alchemist Discovering Phosphorus or The Alchemist in Search of the Philosophers Stone

oil, canvasBaroquegenre paintingalchemistlaboratoryfigureslightinteriorbooks

recreation guide

Joseph Wright of Derby’s *The Alchemist Discovering Phosphorus* (1771) is a quintessential example of his mastery of tenebrism and artificial light, a style for which he is chiefly associated (Source 6). The artwork belongs to the genre of candlelit subjects, where Wright demonstrates his ability to capture dramatic chiaroscuro, similar to his famous works *A Philosopher Lecturing on the Orrery* and *An Experiment on a Bird in the Air Pump* (Source 2). The painting utilizes oil on canvas, a medium chosen for its flexibility, rich color density, and capacity for layering, which allows for a wide range from light to dark (Source 1). Wright’s approach reflects the British Enlightenment’s interest in science and observation, often depicting scenes with strong contrasts between illuminated focal points and deep shadows.

estimated time

40-60 hours over 8-12 sessions

materials

7 items

steps

6 in sequence

materials

item	purpose	modern equivalent
Linseed oil or poppy seed oil	Primary binder for pigments; linseed for general body, poppy for lighter tones to reduce yellowing	Cold-pressed linseed oil, refined poppy oil
Turpentine	Thinner for initial layers and cleaning brushes	Odorless mineral spirits or pure gum turpentine
White lead (Flake White)	Primary white pigment for highlights and mixing; standard for 18th-century oil painting	Non-toxic titanium white or zinc white (note: historical accuracy requires lead, but safety suggests alternatives)
Ultramarine	Deep blue for shadows and atmospheric depth; cited in Reynolds’ method which influenced Wright’s circle	Natural ultramarine or high-quality synthetic ultramarine
Black pigment (Ivory Black or Lamp Black)	For deep shadows and underpainting; part of the monochrome base	Ivory black or Mars black
Red and Yellow earth pigments (Vermilion, Ochre, Yellow Ochre)	For glazing and scumbling to introduce warmth and flesh tones	Cadmium red/yellow or organic equivalents
Canvas	Support for the painting	Linen or cotton duck canvas, primed

preparation

surface prep

The canvas should be primed with a traditional oil ground or gesso to provide a stable, slightly absorbent surface. Wright worked on canvas, which was common for oil painting in this period (Source 1). The ground should be neutral or slightly warm to allow for the dramatic contrast of light and dark. Wright’s training under Thomas Hudson, who was influenced by Joshua Reynolds, suggests a familiarity with standard 18th-century British preparation methods (Source 6).

underdrawing

While specific underdrawing techniques for this exact painting are not detailed in the sources, Wright’s academic training and association with Reynolds suggest a structured approach. A light charcoal or thinned oil sketch would establish the composition, focusing on the placement of the light source and the figures’ gestures. The sources note that Wright was a 'sound craftsman' who understood the 'alphabet of our art' (Source 3).

underpainting

A grisaille (monochrome underpainting) is recommended, consistent with the methods described by Sir Joshua Reynolds, who influenced Wright’s circle. This involves painting the composition in black, white, and ultramarine to establish values and forms before adding color (Source 4). This technique allows for precise control of the dramatic chiaroscuro characteristic of Wright’s work (Source 2).

color palette

Deep Black/Dark Blue

Ivory Black, Ultramarine, Linseed Oil

Shadows and background; establishing the tenebrist effect

Bright White/Yellow-White

White Lead, Yellow Ochre, Linseed Oil

Highlights on the phosphorus glow and illuminated faces

Warm Red/Orange

Vermilion, Red Ochre, Linseed Oil

Glazing over the grisaille to add warmth to skin tones and firelight

Cool Grey/Blue

Ultramarine, White Lead, Black

Scumbling over shadows to create atmospheric depth and coldness

composition

The composition likely employs strong tenebrism, with a central light source (the phosphorus) illuminating the alchemist and key objects while leaving the periphery in deep shadow (Source 6). Wright’s works are noted for their dramatic chiaroscuro, which creates a sense of depth and focus (Source 2). The arrangement of figures and objects would follow principles of visual ordering, using line and value to guide the viewer’s eye to the illuminated center (Source 8).

step by step

underdrawing→underpainting→first pass→refining→finishing→varnishing

underdrawing

step 01
Sketch the composition lightly with charcoal or thinned oil, focusing on the placement of the light source and the main figures.
Tip — Ensure the proportions are correct before proceeding, as Wright was a trained draftsman.
Preparatory drawing

underpainting

step 02
Create a grisaille using black, white, and ultramarine to establish the full range of values from light to dark.
Tip — This monochrome layer allows you to focus on form and light without the complexity of color.
Grisaille

first pass

step 03
Apply thin glazes of red and yellow tones over the grisaille, particularly in areas illuminated by the phosphorus.
Tip — Glazing involves applying a transparent coat of color, allowing the underlying values to show through.
Glazing

refining

step 04
Use scumbling (semi-opaque painting) to add texture and cool tones to the shadows, enhancing the contrast with the warm highlights.
Tip — Scumbling over a darker ground tends to create a cold, grey bloom, which is effective for shadows.
Scumbling

finishing

step 05
Refine the highlights on the phosphorus and the alchemist’s face using thicker applications of white and yellow pigments.
Tip — Oil paint can be molded into different textures; use this to emphasize the intensity of the light.
Impasto

varnishing

step 06
Apply a varnish made from boiled oil and resin to protect the painting and enhance the depth of the colors.
Tip — Varnish provides protection and texture, and can deepen the darks, enhancing the chiaroscuro.
Varnishing

critical techniques

Chiaroscuro

Wright is noted for his dramatic use of light and shadow, particularly in candlelit scenes. This technique creates a sense of drama and focuses attention on the illuminated subject.

Glazing and Scumbling

These techniques allow for the layering of transparent and semi-opaque colors, creating depth and richness. Glazing adds warmth, while scumbling adds coolness and texture.

Tenebrism

A strong form of chiaroscuro with extreme contrasts, used by Wright to highlight the scientific discovery and the alchemist’s reaction.

common pitfalls

→Over-modeling the details before establishing the broad masses of light and dark, which can lead to a 'smallness' in the painting (Source 3).
→Using too much opaque paint in the shadows, which can flatten the image and reduce the atmospheric depth achieved through glazing and scumbling (Source 4).
→Ignoring the drying time of oil layers, which can lead to cracking or muddiness if new layers are applied too soon (Source 1).
→Attempting to deceive the eye with mere naturalism rather than expressing the emotional idea of the scene, which is contrary to the principles of fine art (Source 7).

what the sources don't tell us

Where the corpus is silent, we say so rather than guess. These are the gaps a complete recreation guide would normally cover that our source passages don't.

·Specific pigment recipes used by Wright for this particular painting are not detailed in the sources.
·The exact dimensions and canvas texture of the original are not provided, which may affect the scale of brushwork.
·Detailed information on Wright’s specific brushwork techniques (e.g., brush type, stroke direction) is not available in the provided passages.
·The specific arrangement of objects in the alchemist’s workshop is not described in the sources, so the recreation must rely on general knowledge of Wright’s style rather than specific visual details from the text.

grounded in

The technical procedure in this guide traces to the following classical art-instruction texts.

The Practice of Oil Painting↗
- ON COPYING — applied to Importance of craftsmanship and avoiding over-modeling
- COLOURING A MONOCHROME — applied to Grisaille, glazing, and scumbling techniques
The Practice and Science of Drawing↗
- XX MATERIALS — applied to Philosophy of using materials to express feeling rather than mere deception

cross-referenced from

Named facts about this artwork and artist were checked against these reference pages.

Wikipedia: Oil painting↗
- Oil painting — part 1 — applied to Materials, varnishing, and general oil painting techniques
Wikipedia bio — Joseph Wright↗
- part 3 — applied to Chiaroscuro, tenebrism, and Wright’s style
- part 6 — applied to Wright’s association with tenebrism and artificial light
Wikipedia: Composition (visual arts)↗
- Composition (visual arts) — part 1 — applied to General principles of composition and visual ordering