Behind Closed Doors: New Cabinetry for the Herbarium at the Academy of Natural Sciences, Philadelphia (PH)

该项目将使自然科学院（PH）植物收藏的储存条件达到档案标准。这些标本代表了美国许多最早和历史上最重要的植物收藏品，目前受到环境不稳定和有害生物入侵的威胁，这些威胁来自当前的储存条件。20多年前安装的移动货架系统是首批此类装置之一，因此是几个设计特征的试验场。尽管设计初衷是最好的，但该系统已被证明在几个方面存在根本缺陷，包括没有门，存储空间（小隔间）的大小与植物标本馆标本的大小不一致，以及建筑材料不符合档案质量。橱柜系统由体积庞大但可渗透的木质复合材料制成，可排出挥发性化合物。除了压实机系统的这些缺陷外，周围的存储区域与相邻区域没有充分密封，温度和湿度控制不佳。这些情况将得到改善，办法是购置新的金属植物标本室，安装在现有的经过翻新的压实机车厢上，并安装新的暖通空调系统来控制温度和湿度。金属柜与紧密关闭，垫片门，将解决几个问题，包括消除标本暴露于非档案质量的建筑材料，修正小柜尺寸，缓冲当地的环境条件。与气候控制一起，这将允许控制虫害，防止害虫在橱柜之间移动。费城自然科学院的植物标本室拥有独特的科学和历史资源。值得注意的是，它拥有超过44,000个模式标本，其中具有特殊历史意义的标本数量是其一半。藏品总数超过130万个标本，包括许多历史上最重要的北美植物群。著名的18和19世纪的标本包括b.s.巴顿（1766-1815）、H. Muhlenberg（1753-1815）、T. nutall（1786-1859）的标本，以及梅里韦瑟·刘易斯和威廉·克拉克在对美国西部进行历史性探索期间（1804-06）收集的几乎所有幸存的标本。该项目将保留目前的收集，并允许大约10-15%的扩张，足以应对未来10-15年的预期增长。新的机柜和HVAC系统将对保护PH值下的标本免受进一步破坏和保护它们的未来产生直接和长期的影响。由于模式标本的丰富和历史资料的丰富，这些升级将有利于国内和国际的植物和历史学者

This project will bring the storage conditions for the plant collection at the Academy of Natural Sciences (PH) up to archival standards. These specimens, representing many of the earliest and historically most significant plant collections of the United States, are currently threatened by environmental instability and pest incursions that result from current storage conditions. The mobile shelving systems installed more than 20 years ago were one of the first such installations and were thus something of a testing ground for several design features. Although designed with the best of intentions, the system has proven to be fundamentally flawed on several counts including absence of doors, storage spaces (cubbies) that are the wrong size for herbarium specimens, and construction materials that are not archival quality. The cabinet system is made of bulky yet permeable wood-composite materials that outgas volatile compounds. In addition to these flaws in the compactor system, the surrounding storage area is not adequately sealed from adjacent areas and has poor control of temperature and humidity. These conditions will be ameliorated by acquisition of new metal herbarium cabinets to be installed on existing, refurbished compactor carriages and by installation of a new HVAC system to control temperature and humidity. Metal cabinets with tightly closing, gasketed doors, will solve several problems including elimination of exposure of specimens to non-archival quality construction materials, correction of cubby dimensions, and buffering of local environmental conditions. Together with climate control, this will permit control of insect infestations and prevent pest movement between cabinets. The Herbarium of the Academy of Natural Sciences of Philadelphia is home to unique resources of scientific and historical importance. Notably, it houses upwards of 44,000 type specimens and half again as many specimens of special historical significance. The collection totals more than 1.3 million specimens, including many of the most historically significant collections of the North American flora. Notable collections from the 18th and 19th centuries include those of B. S. Barton (1766-1815), H. Muhlenberg (1753-1815), T. Nuttall (1786-1859), and nearly all of the surviving specimens collected by Meriwether Lewis and William Clark during their historic exploration of the western U.S. (1804-06). This project will preserve the current collection and allow for expansion of approximately 10-15%, sufficient to handle anticipated growth over the next 10-15 years. The new cabinets and HVAC system will have the immediate and long-term impact of saving the specimens at PH from further damage and protecting them for the future. Due to the many type specimens and wealth of historical material, these upgrades will benefit the national and international community of botanical and historical scholars, while