or 'College of Tradesmen for the Advancement of all Mechanicall Arts and Manufactures,' to be such that one at least of every trade (the prime most ingenious workman) might be elected a Fellow, and allowed therein a handsome dwelling rent free. From such an institution the projector conceived that all trades not only 'would miraculously progress and new inventions be more frequent, but that there would also be the best and most effectual opportunities and means for writing a history of Trades in perfection and exactness.' Adamson remarks that the general scheme is that of "Solomon's House, as depicted in Bacon's 'New Atlantis. Within the walls of the Gymnasium there was also to be a 'Nosocomium Academicum,' or model hospital for the benefit of the scientific practitioner, as well as of the patient, and a complete 'Theatrum botanicum', 'stalls and Cages for all strange Beastes and Birds, with Ponds and Conservatories for all exotick Fishes'. The design concludes with the expression of a regret that no 'Society of Men' as yet exists 'as careful to advance arts as the Jesuits are to propagate their religion.' A large part of The Advice to Hartlib consists of a detailed description of the 'Nosocomium Academicum'. It could be made out of an old hospital, and could be overseen by three or four curators. The staff of the hospital should consist of a Mathematician for Steward, a Physician, Chirurgeon and Apothecary. They would be assisted by a vice-physician, a student, a chirurgeons mate and an apothecaries mate, two apprentices and nurses. The tasks of the different staff members are described. The following pages of The Advice to Hartlib are reserved for the books, that should be used in the schools. Petty first refers to "Master Pells three Mathematical Treatises". He then proposes compiling a work with the title Vellus Aureum sive Facultatum Lucriferarum discriptio Magna (the Golden Fleece, or great description of the Money-making Faculties), "wherein all the practesed wayes of getting a Subsistance and whereby Men raise their fortunes, may be at large declared.". An extensive description follows of this compilation, that is sometimes referred to as a "History of Trades". The Advice to Hartlib concludes with the expression of a regret that no 'Society of Men' as yet exists 'as careful to advance arts as the Jesuits are to propagate their religion,' and with a suggestion of a work on the lines